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is the petzl grigri safe?
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climbing_the_suburbs


Oct 6, 2003, 9:26 PM
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is the petzl grigri safe?
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I was told recently the the petzl grigri is not a self locking device. this had me worried because i used the grugri every week to self belay and was wondering if anyone knew about a accident realting to the grigri.
(no i was not being dumb and ignoring the instructions just ignorant, the instructor had told me to use it the way i did.)


cthcrockclimber


Oct 6, 2003, 9:49 PM
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The gri-gri is one of the safest devices out there, and no i have not heard of any accidents other than those involving human error


Partner chugach001


Oct 6, 2003, 9:52 PM
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I know of two people who have taken long falls while rapping on thin lines (~8-9mm) with a grigri. One ended in broken bones.

From what I know, it works as a self-belay on fat lines (10mm+) but is not billed as such.
Jeff


dsafanda


Oct 6, 2003, 9:52 PM
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Re: is the petzl grigri safe? [In reply to]
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If used by an experienced climber with commone sense and caution...YES!

That's pretty much true of all climbing equipment. Nothing is totally idiot proof.


climbhigh2005


Oct 6, 2003, 9:52 PM
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Yes.. gri gris are extremely safe as long as you load them right and make sure the belayer doesnt get lazy...


grigriese


Oct 6, 2003, 10:03 PM
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In reply to:
I was told recently the the petzl grigri is not a self locking device. this had me worried because i used the grugri every week to self belay and was wondering if anyone knew about a accident realting to the grigri.
(no i was not being dumb and ignoring the instructions just ignorant, the instructor had told me to use it the way i did.)

Grigri's are pretty safe (depends on who is using it really) but they are not intended for self belaying. You may want to consider a device that is specifically designed for soloing/self-belaying.


monkeyarm


Oct 6, 2003, 10:14 PM
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I have had gri gris fail on a couple separate occasions. Don't like them and wouldn't recommend anyone using one


tendertendons


Oct 6, 2003, 10:30 PM
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Grigri's are safe so long as you don't have to worry about impact forces on the protection. Don't use a Grigri for belaying a trad leader because the device allows very little rope to feed through it when the cam locks up. On the surface this might seem like a blessing since it can save you rope burn on your brake hand but in reality, the extra few inches of rope that feeds through a tube, munter, plate, etc provides a more dynamic belay thus lessening the impact forces on the whole system.
I have a grigri but only use it for newbies who I don't trust to keep their brake hand where its suppose to be and I never use it for trad.

:roll:


revdeuno


Oct 6, 2003, 10:34 PM
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grigris are very safe. I prefer people use mine while belaying me. Theyre pretty much indestructable as well. It is in fact self-locking, but it won't lock if the rope is being fed through it slowly, which is a good thing for belaying the leader.


petsfed


Oct 6, 2003, 10:43 PM
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Gri-gris are nearly fool-proof in the hands of an experienced climber, well versed in its nuances. A beginner should never belay a leader of any sort with a gri-gri, and they should be avoided in many trad situations. If the gear is bomber, a gri-gri is a valid device for trad, so long as you remember the "hop" aspect of catching a fall. Do not use one if you don't want to see just how bombproof your gear is.

As for self belay, here's what I've picked up (mind you I only self belay with a gri-gri whilst aidclimbing):

You must tie backup knots. Very important.
You must fall upright, or modify the device so if you fall inverted it does not cross load the carabiner. Very important.
You must rig it correctly every time. Very important.

For the first two reasons, I wouldn't use it for free climbing self-belay unless toproping. Even then, I would have a preference for a true ascender, like the venerable Gibbs, rather than the gri-gri. Better still (in the TR situation) would be a prussik or other friction knot, but you have to keep those tight on the rope at all times or some very bad melty things can happen.


thehardnailer


Oct 7, 2003, 6:59 AM
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Re: is the petzl grigri safe? [In reply to]
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As you can tell alot of folk's just don't read the post the same way others do. The gri-gri is a great sport belay device, when you rule out human error, butit is very dangerouse for self belay. Due to the nature of the self belay the slake end of the rope (the part you would normaly have in you'r brake hand) could cross over the top of the cam and hold it in the open position(just like when you have to throw your climber a mile of slake to make a clip so you keep it closed with your finger) Only use a device that is intended for self belay.


onelung


Oct 7, 2003, 7:15 AM
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In reply to:
As you can tell alot of folk's just don't read the post the same way others do. The gri-gri is a great sport belay device, when you rule out human error, butit is very dangerouse for self belay. Due to the nature of the self belay the slake end of the rope (the part you would normaly have in you'r brake hand) could cross over the top of the cam and hold it in the open position(just like when you have to throw your climber a mile of slake to make a clip so you keep it closed with your finger) Only use a device that is intended for self belay.

Sorry dood, not true. I have self belayed off the gri for awhile. No I do not trust the device wholly so I ty into knots along the way. I have fallen everyway you can, but a knot will NOT pass thru.

Even on multipitch if the gri falls apart (has this ever happened) you are still tied in and will have ample opportunity to send!

I am bill


pudding


Oct 7, 2003, 9:38 AM
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I hope most people have read the guide book for the gri gri and found in it the part that says it is not a self locking device, when they are new they can be alright, and i feel too many people rely that they will always lock, but as it's been said the rope can be twisted in a funny way to cause it to allow the rope to run through. however as they get older and worn rope will begin to slip through the device even when in locked off position, and this is a very good time for them to be replaced or some bad accidents can happen.


gregr


Oct 7, 2003, 10:00 AM
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Grigris are not regarded as entirely safe for ropes with diameters of less than 10mm


rangertau


Oct 7, 2003, 12:50 PM
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Gri gri is very safe. It is not designed as a solo device, but a VERY experienced climber can utlize it as such. Times I have heard of the Gri gri failing usually are caused by reverse routing of the rope (happens way more than people realize, and they usually are loathe to admit it when they drop their leader) and by using ropes with too small a diameter. Read the instructions! It it not designed for less than 10mm. Also, I discount that a gri gri wears out over time and will pass ropes easier. gri gri's are tough, and designed on the same principle as a seatbelt. They will wear out from getting banged around and DROPPED before the cam system does. I will admit that a gri gri is not the best rappel device, and that the plastic handle is a possible fail point (though the system will not fail) for controlling descents.


Partner tim


Oct 7, 2003, 12:56 PM
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Use the device as instructed and it will work as advertised.

Use it for solo self-belay in the wrong kind of a fall, or with too small of a rope diameter, and you won't be long for this world.

It's really very simple in that respect, and Petzl says so upfront.

I've done some pretty stupid things with a GriGri (ice solo belay, upside-down aid falls, etc.) and I'm still here, but I wouldn't recommend following my bad example. It's a compliment to the device, for sure, but I still use a B52 myself for all but the most drawn-out aid leads.


In reply to:
I was told recently the the petzl grigri is not a self locking device. this had me worried because i used the grugri every week to self belay and was wondering if anyone knew about a accident realting to the grigri.
(no i was not being dumb and ignoring the instructions just ignorant, the instructor had told me to use it the way i did.)


darkside


Oct 7, 2003, 1:57 PM
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In reply to:
I was told recently the the petzl grigri is not a self locking device.
True. Petzl does not make that claim either.


In reply to:
......the instructor had told me to use it the way i did.)
I would submit one of two possibilities here. Either the instructor was giving bad advise, or that you do not fully understand the activity of rope soloing. I would suggest you cease this until your experience or knowledge is more suited. Find a partner.


In reply to:
Grigri's are pretty safe (depends on who is using it really) but they are not intended for self belaying. You may want to consider a device that is specifically designed for soloing/self-belaying.
Good advise worth following if you intend to continue.


In reply to:
You must tie backup knots. Very important.
You must fall upright, or modify the device so if you fall inverted it does not cross load the carabiner. Very important.
You must rig it correctly every time. Very important.
More good advise here. Tying backup knots pretty much goes without saying for any solo device. Rather than modifying the gri-gri, a better option is to use a DMM belay master to prevent a cross loaded biner.


In reply to:
Grigri's are safe so long as you don't have to worry about impact forces on the protection. Don't use a Grigri for belaying a trad leader because the device allows very little rope to feed through it when the cam locks up. On the surface this might seem like a blessing since it can save you rope burn on your brake hand but in reality, the extra few inches of rope that feeds through a tube, munter, plate, etc provides a more dynamic belay thus lessening the impact forces on the whole system.
I have a grigri but only use it for newbies who I don't trust to keep their brake hand where its suppose to be and I never use it for trad.

:roll:
On the whole I would agree with tendertendon's reservations of using a gri-gri for trad but more because most climbers do not give a good belay. I previously had reservations and contacted Petzl. Here are some considerations on belaying a trad leader.
In reply to:
.....we must takes many variables into consideration. I think what you are hinting at is the question of a static belay, implying that a tuber style belay device like a Reverso, ATC, or Sherriff is somehow dynamic, or absorbs energy when braking, more so than a Grigri. The false notion that this lack of energy absorption somehow makes the Grigri less safe or suitable for only certain types of climbing (sport) is a thought, unfortunately, that many climbers have. Well this idea is just that - a false notion - meaning not true. Any tuber style belay device locks up as sharply and quickly as the Grigri if properly used.
......Energy absorption can be taken into account on climbs where the pro is sketchy in a variety of ways. First is your rope; the chief duty of energy absorption lies with this important piece of equipment. Climbing on an old tattered rope can largely increase the peak force felt on your highest piece. Shock absorbing lanyards like the Petzl Nitro or a Yates Screamer can be employed to limit peak force on a shoddy piece of gear. Using long runners or placing gear to avoid drag enables the full amount of paid out rope to be used in energy absorption (typically the larger the fall the softer it is because there is more rope to absorb the energy). Finally, the belayer's braking technique can greatly dissipate peak force energy, by jumping or springing upwards toward the first piece at the moment of impact. There are many other factors that determine the peak force felt by your highest piece of protection: the other pieces of gear, rope drag, friction on the rock as well as all the carabiners, weight of the belayer, distance of the fall, and the amount of rope paid out. With all that said I believe the belay device to be one of the least important links in the chain of energy absorption. I am sorry that we do not have any hard data to illustrate these ideas more clearly.

To conclude Petzl's position, comes this disclaimer:
In reply to:
......our technical notice that is sold with the Grigri officially points out that this device was developed for gym use and well protected sport routes only. We do understand that climbers have taken certain liberties with equipment and developed applications outside of the parameters of its initially intended use.


climbersam


Oct 7, 2003, 2:14 PM
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I've used a modified grigri for self-belay and have noticed several failings of using it as such a device. I ground down case (not the cam) where the rope exits to the top of the climb. This allows rope to feed through better. Problems are;
1. The device inverts at the harness while ascending (This can be corrected by drilling a hole at the end, and tying the device with accessory cord to your upper body, via chest harness.) When it pops back, it can pop back into your chest hard enough to break ribs or worse.
2. As said before, rope could hold the cam down causing you to drop.
3. Rope can go under the hand release, reducing friction to the point the device won't catch.
4. Even with the modifications, the rope must turn at significant angles when exiting the device, causing lots of drag.
5. Where the case is ground down, a sliver of open space between the plates exists. The rope could pinch and be cut at this point.

This being said, I've use this grigri setup with success.


arrettinator


Oct 7, 2003, 2:26 PM
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In reply to:
Nothing is totally idiot proof.


mustclimb69


Oct 7, 2003, 2:49 PM
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GriGri is safe. it is also a more diverse toolforclimbbing than a $100 cdn soloist.


curt


Oct 7, 2003, 3:01 PM
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Guns don't kill people, people kill people. Get it?

Curt


wiredclimber


Oct 8, 2003, 5:44 PM
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never had one fail on a fat rope (10 mm and up) in 2 years of use. anything less would be sketchy though.


overlord


Oct 8, 2003, 5:54 PM
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if you use it correctly it is one of the safest devices out there. and its not meant for rapping on thin lines. read the instructions. it is not meant for rapping at all. its a belay device. and you can use 9.5mm rope with it too, just the max catch force is lower, but thats not really important if you do sport. on trad, where you can expect longer falls i would use at least 10mm rope.


Partner coldclimb


Oct 8, 2003, 6:25 PM
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The grigri is perfectly safe, but not foolproof. Fools can always find a way around safety.


robbovius


Oct 8, 2003, 6:32 PM
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The grigri is positively the most unsafe device ever. IN fact, just having one in the same climbing area guarantees a fall. If you have one, you should send it to me, and I will dispose fo it for you.


corpse


Oct 12, 2003, 12:58 AM
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In reply to:
The grigri is positively the most unsafe device ever. IN fact, just having one in the same climbing area guarantees a fall. If you have one, you should send it to me, and I will dispose fo it for you.

:lol: I'll take any surplus he doesn't want.


coclimber26


Oct 12, 2003, 1:11 AM
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The Gri-Gri can and will fail with ropes smaller than 10mm. If belaying on a low angle toprope beware. Similar to your car seatbelt, if you pull it slowly it feeds belt through, if there isn't enough force the Gri-Gri can slip through. to aliviate this use a break hand just like an ATC just incase it slips with low forces. The Gri-Gri cams similar to the soloist and if used properly will work fine for soloing. always tie backup knots in your rope and wear a chest harness....My 2 cents.


climbing_the_suburbs


Oct 12, 2003, 2:03 AM
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hey all
thanks for the great replys. im really happy to be a member of RC.com and am ever so greatful for this ton of info on the gri gri i havent been climbing b/c of school but im working on a wall in my friends house this weekend and am thankful for the advice... :D :lol: :D


alpnclmbr1


Oct 12, 2003, 2:05 AM
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I have worn out three grigri’s, worn out to me means when you yank out the climber side of a 10ml rope it will not lock up. These same grigri’s worked perfectly fine when used properly for actually catching falls at the same time they failed that test, nevertheless I did trash them anyway.


In reply to:

((petzl reply))
In reply to:
.....we must takes many variables into consideration. I think what you are hinting at is the question of a static belay, implying that a tuber style belay device like a Reverso, ATC, or Sherriff is somehow dynamic, or absorbs energy when braking, more so than a Grigri. The false notion that this lack of energy absorption somehow makes the Grigri less safe or suitable for only certain types of climbing (sport) is a thought, unfortunately, that many climbers have. Well this idea is just that - a false notion - meaning not true. Any tuber style belay device locks up as sharply and quickly as the Grigri if properly used.

As far as petzl’s claims about a grigri’s more static catch not being a significant factor: there is a bunch of fairly hard data that suggest it can increase the impact forces 40% or more. (a side note: doing a belay jump is rarely possible in multi pitch circumstances.)

REI belay device tests: 40 to 50% increase (they tend to overstate the amount of rope slippage in a normal belay device:

http://www.somat.com/applications/articles/rei.htm

A Beal site that shows up to an 80% difference between a tube and a grigri, with a high impact force rope.

http://www.impact-force.info/anglais/impact4.html

some numbers from from the UK:

http://www.leeds.ac.uk/sports_science/abstracts/climb99/wnachbauer1.htm


madcowrockclimber


Oct 12, 2003, 2:15 AM
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i think you seem to be a tight wad and need to understand that good equipment will cost a little coinage 8)


madcowrockclimber


Oct 12, 2003, 2:24 AM
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I have been using a grigri for 3 years and have absolutly zero complaints except that if your climber is less than 50lbs he/she may not have enough wieght to come back down.(in the indoor gym i go to i have had this happen many times before. in b-day groups for example a 7 yearold kid get to the top of a 40' high wall and is to light to come back down so we sent somone up on a lead climb to pull him/her back down again.)

If you use it proporly in a controled environment the grigri can be used as a "self-belay" device but should not be made a habit of. I have heard stories of someone having trouble with a grigri but it turned out the threaded the device improporly.

if the $80.00 price tag is your concern just remember that if you want good equipment you gotta blow a little coin to get it.



caddilac $99
grigri $80
mojaves $120
trip to climb the nose of el-cap priceless :lol:


jono


Oct 12, 2003, 3:43 AM
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meh, i use ATC for belay.


bigwalling


Oct 12, 2003, 4:25 AM
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I use the gri gri to solo aid and I have used it for roped soloing on free climbs. I find it to be very safe if it is threaded properly. But you would be an idiot to thread it wrong!

I have taken a 50' fall on it while solo aid climbing. I've had some people say that it doesn't catch in head first falls(or at least not as quick). But that fall was head first and caught me just fine. So I think it is very safe if you know what you are doing.


granitegod


Oct 12, 2003, 5:06 AM
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Re: is the petzl grigri safe? [In reply to]
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In my limited experience with Gri-Gris....I was once dropped 25 feet at a climbing gym by a very experienced, responsible, attentive belayer using a gri-gri. He was squeezing the device to feed rope quickly when I popped off without warning while attempting to clip, and it did not lock until he let go. My feet were about 3 feet off the deck. Was this the belayer's fault, or the device's? Probably a little of both.

To me, the gri-gri's inherent fault is that it encourages lazy belaying. Lazy belaying is unsafe belaying. Yes, if used properly, it is safe, just like an ATC, a figure 8, a munter hitch, or a hip belay.

As for self belaying with a gri gri...... if you hadn't wasted $70 dollars on a belay device and $18 on another device to rap with, you coulda got a Soloist which was designed specifically for self belay. At most climbing areas, admission is free. Safety, however depends on quality gear, used as intended......and quality comes at a price.


granitegod


Oct 12, 2003, 5:07 AM
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Re: is the petzl grigri safe? [In reply to]
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Oh, and another thing...... "gri-gri" is the stupidest name for a freakin' piece of gear ever.


hema


Oct 12, 2003, 11:59 AM
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Re: is the petzl grigri safe? [In reply to]
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Here's a good source for info of the safety of a GriGri:
http://www.thebmc.co.uk/safety/tech/articles/grigri.pdf

Done for the British Mountaineering Counsil (BMC).

Conclusion GriGri is safe, but not foolproof.

As for the "death modifed GriGri" (aka GriGri for lead rope soloing), again not foolprrof and might not stop a fall if inverted.

And remember when belaying a leader with a GriGri NEVER EVER keep then cam open with your thumb, use your pinky or lock the cam open by pressing the GriGri from the sides.


climb_plastic


Oct 14, 2003, 2:51 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
Yes, if used properly, it is safe, just like an ATC, a figure 8, a munter hitch, or a hip belay.

If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.


curt


Oct 14, 2003, 2:57 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
In reply to:
Yes, if used properly, it is safe, just like an ATC, a figure 8, a munter hitch, or a hip belay.

If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.

To put it simply, that is total BS.

Curt


rcaret


Oct 14, 2003, 3:02 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
I know of two people who have taken long falls while rapping on thin lines (~8-9mm) with a grigri. One ended in broken bones.

From what I know, it works as a self-belay on fat lines (10mm+) but is not billed as such.
Jeff

The side of my Gri-Gri states 10 to 11 mm rope so the falls on smaller rope = Human error .

As a self-belay it needs a modification because it will not hold in a head first fall , The modification voids the warranty and you need a full body harness when using it as a self-belay device even after the modification.


climb_plastic


Oct 14, 2003, 3:09 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
In reply to:
In reply to:
Yes, if used properly, it is safe, just like an ATC, a figure 8, a munter hitch, or a hip belay.

If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.

To put it simply, that is total BS.

Curt

No it's not.


curt


Oct 14, 2003, 3:15 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
In reply to:
In reply to:
In reply to:
Yes, if used properly, it is safe, just like an ATC, a figure 8, a munter hitch, or a hip belay.

If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.

To put it simply, that is total BS.

Curt

No it's not.

Yes it is. Haha, how long do you think this pissing contest can go on?

Curt


climb_plastic


Oct 14, 2003, 3:24 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
In reply to:
In reply to:
In reply to:
In reply to:
Yes, if used properly, it is safe, just like an ATC, a figure 8, a munter hitch, or a hip belay.

If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.

To put it simply, that is total BS.

Curt


No it's not.

Yes it is. Haha, how long do you think this pissing contest can go on?

Curt

I don't know.....No it's not.


alpnclmbr1


Oct 14, 2003, 3:31 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
In reply to:
In reply to:
In reply to:
In reply to:
Yes, if used properly, it is safe, just like an ATC, a figure 8, a munter hitch, or a hip belay.

If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.

To put it simply, that is total BS.

Curt

No it's not.

Yes it is. Haha, how long do you think this pissing contest can go on?

Curt

Used properly a grigri is not any safer than a properly used atc.

Used improperly as evidenced by the false sense of confidence you have espoused in your post a grigri's benefits can be outweighed by the downside in attitude.

When all is said and done I would rather be belayed by a beginner with a grigri then a begginer with an atc. (in a situation where i might fall anyway)


curt


Oct 14, 2003, 3:34 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.
Only a poor workman blames his tools. The Gri-Gri can easily instill a false sense of safety in an incompetent belayer. This can have dire consequences. A belayer is either competent (i.e. safe) or he/she is not. End of story. The device used has absolutely nothing to do with it.

Curt


catra


Oct 14, 2003, 3:35 AM
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Re: is the petzl grigri safe? [In reply to]
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I don't think a gri gri is 100% safe.... It failed when i was rapping off El Cap and i took a 30 foot fall to the end of where the rope was tied off..

The rope caught my arm, and I broke my ulna. i now have a plate, and seven screws in my arm, but hey at least im alive...

Cheers,
Catra

http://www.rocknrun.net


curt


Oct 14, 2003, 3:38 AM
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Re: is the petzl grigri safe? [In reply to]
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When all is said and done I would rather be belayed by a beginner with a grigri then a begginer with an atc. (in a situation where i might fall anyway)
But Dan, wouldn't you first determine that this "beginner" knows the basics of belaying before allowing him/her to belay you? I know you would. And in that case, the belay device just doesn't matter.

Curt


climb_plastic


Oct 14, 2003, 3:42 AM
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If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.
Only a poor workman blames his tools. The Gri-Gri can easily instill a false sense of safety in an incompetent belayer. This can have dire consequences. A belayer is either competent (i.e. safe) or he/she is not. End of story. The device used has absolutely nothing to do with it.

Curt

Yeah but I'd rather have a competent belayer using a gri-gri than a competent user using an atc. I'm not comparing an incompetent gri-gri user with a competent user on an atc. That wouldn't be a fair comparison. If I had a competent user on a gri-gri I'm pretty certain nothing will go wrong. I'm not as sure nothing will go wrong with a competent user on an atc.

You might have to read this a couple of times to get what I'm saying.


curt


Oct 14, 2003, 3:47 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
In reply to:
In reply to:
If used correctly it's way safer than the ATC, figure 8. munter hitch and hip belay. Even if you use the other things properly there are way more things that can go wrong with them than when using a gri gri. No matter how attentive you are you're bound to lose attention or get distracted for even a fraction of a second and with the other systems it could have great consequences. With the gri gri it's pretty safe.
Only a poor workman blames his tools. The Gri-Gri can easily instill a false sense of safety in an incompetent belayer. This can have dire consequences. A belayer is either competent (i.e. safe) or he/she is not. End of story. The device used has absolutely nothing to do with it.

Curt

Yeah but I'd rather have a competent belayer using a gri-gri than a competent user using an atc. I'm not comparing an incompetent gri-gri user with a competent user on an atc. That wouldn't be a fair comparison. If I had a competent user on a gri-gri I'm pretty certain nothing will go wrong. I'm not as sure nothing will go wrong with a competent user on an atc.

You might have to read this a couple of times to get what I'm saying.

As my comprehension is pretty good, I only had to read it once. You are clearly either:

1) an idiot.
or
2) a total n00b climber with no experience whatsoever.

Curt


alpnclmbr1


Oct 14, 2003, 3:52 AM
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Re: is the petzl grigri safe? [In reply to]
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When all is said and done I would rather be belayed by a beginner with a grigri then a begginer with an atc. (in a situation where i might fall anyway)
But Dan, wouldn't you first determine that this "beginner" knows the basics of belaying before allowing him/her to belay you? I know you would. And in that case, the belay device just doesn't matter.

Curt

For the most part I wouldn't let a beginner climber belay me on a climb I could actually fall on. Most times I just assume I am soloing and there is no way I would let them lower me without someone backing them up.

There have been situations where I bent that rule a little bit and a grigri does offer some additional confidence.

I have met people who have been climbing for a long time who I wouldn't let belay me on a climb I could fall on with a grigri or an atc.

I am paranoid about my belayers in situations where I might fall, and the number of people who inspire confidence as a belayer is rather limited.


curt


Oct 14, 2003, 3:56 AM
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Re: is the petzl grigri safe? [In reply to]
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In reply to:
I have met people who have been climbing for a long time who I wouldn't let belay me on a climb I could fall on with a grigri or an atc.

I am paranoid about my belayers in situations where I might fall, and the number of people who inspire confidence as a belayer is rather limited.
Right. So, I don't think we are in disagreement here. It is the person you trust rather than the belay device--correct?

Curt


climb_plastic


Oct 14, 2003, 3:57 AM
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As my comprehension is pretty good, I only had to read it once. You are clearly either:

1) an idiot.
or
2) a total n00b climber with no experience whatsoever.

Curt

Oops sorry...you took that last comment incorrectly. I didn't mean just "you" personally. I meant that anyone reading it might get confused because I said "competent" a few too many times. When I read it I even had to read it a couple times to make sure it made sense.


alpnclmbr1


Oct 14, 2003, 4:02 AM
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Yeah but I'd rather have a competent belayer using a gri-gri than a competent user using an atc. I'm not comparing an incompetent gri-gri user with a competent user on an atc. That wouldn't be a fair comparison. If I had a competent user on a gri-gri I'm pretty certain nothing will go wrong. I'm not as sure nothing will go wrong with a competent user on an atc.

This attitude is the major downside to a grigri. That fact is, if you believe this your level of confidence is influenced by the use of a grigri. In other words your more likely to be comfortable with a given belayer with a grigri whereas you might question his competence with an atc.

This is exactly why so many people get dropped with a grigri.
The fact of the matter is if you cannot belay safely with an atc, you cannot belay safely with a grigri. Just to confuse things more, being able to safely belay with an atc doesn't guarantee a good belay with a grigri.

No, I don't feel this contradicts my post above.


alpnclmbr1


Oct 14, 2003, 4:08 AM
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In reply to:
In reply to:
I have met people who have been climbing for a long time who I wouldn't let belay me on a climb I could fall on with a grigri or an atc.

I am paranoid about my belayers in situations where I might fall, and the number of people who inspire confidence as a belayer is rather limited.
Right. So, I don't think we are in disagreement here. It is the person you trust rather than the belay device--correct?

Curt

With a trustworthy belayer it wouldn't make any difference what kind of device they used. (There is an exception for a really steep hard climb where I need the belayer to jumg a long ways)


curt


Oct 14, 2003, 4:11 AM
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Re: is the petzl grigri safe? [In reply to]
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Well, your comments that I take issue with are:
In reply to:
If I had a competent user on a gri-gri I'm pretty certain nothing will go wrong. I'm not as sure nothing will go wrong with a competent user on an atc.
This is just totally false. People have climbed for many many years before the Gri-Gri was invented and caught zillions of falls without bad result. I will grant you that the Gri-Gri may be a fine belay device, but (as with all other belay methods) only in the hands of someone who knows what they are doing. Conversely, a belayer who knows what he/she is doing will be just as safe using any other belay device--or with no belay device for that matter, as in the waist belay. This is just a fact. I really don't see how you can argue this point.

Curt


climb_plastic


Oct 14, 2003, 4:19 AM
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In reply to:
Conversely, a belayer who knows what he/she is doing will be just as safe using any other belay device--or with no belay device for that matter, as in the waist belay. This is just a fact. I really don't see how you can argue this point.

Curt

OK this discussion doesn't seem like it will go anywhere. You believe that a belayer that knows what he is doing is as safe using any device as a belayer that knows what his is doing on a gri-gri. You're probably right...I'm not saying that I don't trust the guy using the atc but I'd still trust the guy on the gri-gri more.


apollodorus


Oct 14, 2003, 5:48 AM
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MrHardGrit used a Gri for soloing on Eagles Way on El Cap, and broke the biner in a fall. The Gri wasn't at fault, but it reinforces the need to use back-up knots tied in the rope. My guess is that the biner was loaded off-axis, something you can't control in the real world.

Tie into the end of the rope, and tie overhand knots and clip them to you as you go up. The only single piece you should rely on is the rope. Everywhere else you should have two or three.


apollodorus


Oct 14, 2003, 6:13 AM
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If the Gri is used with fat (10-11mm) ropes, it's a great device.

Thinner ropes will not lock off properly, due to the way it's designed.

Don't try it.

The manufacturer's cheat sheet says 10 or 11mm ropes only.

The Gri doesn't have the rope-diameter bandwidth of, say, the Jumar. It's design necessitates rope of a smaller range. A jumar, by comparison, can work with ropes from 7 to 11 mm. But, the jumar has teeth, and a different cam design. The Gri's cam is intened to work with pure friction with a smooth cam over a smaller range of rope diameters.

The Gri works great over the range of ropes for which it's designed for.

Don't try to extend that range, ad hoc, because your rope is smaller.

Use an ATC if your rope is outside the range specified by the Gri manufacturer. Those things are much more forgiving, in terms of rope diameter.


alpnclmbr1


Oct 14, 2003, 6:38 AM
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Petzl web site actually say's that a 9.7 is all right.
Many people belay sport climbs with even smaller ropes (9.4) on sport climbs and with the proper use of the device. I am not recommending that people do this, just relaying the reality.


btw: the guy that said he doesn't believe the cam on a grigri wears out is full of it. Petzl recommends a test to determine this condition, I wonder why.


alpnclmbr1


Oct 14, 2003, 7:45 AM
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Strider

I would basically agree with everything you wrote.

I would offer this observation in addendum though.
I have seen and heard about way more people being dropped with a grigri then with an atc, this is despite the fact that the majority of belays that I have been around were done with an atc type device. Admitedly a lot of this can be atrributed to changes in the climbing community, but not all of it.

also as far as tests on the grigri, on page two of this thread there are two more links in one of my posts to studies done on a grigri besides the rei test


curt


Oct 15, 2003, 12:40 AM
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In reply to:
Now I know anyone can come up with a situation or a statistic that will support their claim, regardless of the validity of the claim. Glass is half empty/half full kind of thing. But the question is whether a Grigri, when used correctly, is inherently safer than an ATC.
Why didn't you add "when used correctly" at the end of your statement--in reference to the ATC?
In reply to:
There is a simple answer to that question in my mind. If you release the dead end of the rope with your right hand and your leader/top-roper falls at the same time, what will happen if you are using a Grigri vs. ATC? What will happen if you take out the HUMAN factor?
There are plenty of ways for what you are calling the human factor to enter into improper Gri-gri operation as well. So, you are hardly eliminating the human factor with your example. If anything you are reinforcing my point that the belayer is more critical to good belaying than the device is.

Curt


strider


Oct 15, 2003, 1:47 AM
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Curt sez:
Why didn't you add "when used correctly" at the end of your statement--in reference to the ATC?

I didn't do that on purpose. The ATC still needs to be used correctly. Isn't that kind of self evident? There are certainly ways to improperly use an ATC. What was the point of your question?

Curt also sez:
There are plenty of ways for what you are calling the human factor to enter into improper Gri-gri operation as well. So, you are hardly eliminating the human factor with your example. If anything you are reinforcing my point that the belayer is more critical to good belaying than the device is.

Exactly how did I fail in eliminating the Human Factor in my example? Yes, the Grigri needs to be set-up correctly, as does the ATC. So if you leave each device alone to do it's job without human interaction with the device then you will find that the Grigri's job is automatically grab the rope whereas the ATC's is to let the slide right through the device. And you are right, the belayer is ABSOLUTELY MORE CRITCAL to good belaying than the device. I guess you didn't read my post carefully because I never said it wasn't. What I am saying is that device in and of itself is safer than an ATC.

Please try to argue more effectively next time.


curt


Oct 15, 2003, 1:54 AM
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strider,
In reply to:
Exactly how did I fail in eliminating the Human Factor in my example?
Well, genius it is because you only eliminated one point of human intervention, i.e. taking your brake hand off the rope. What if the Gri-gri is threaded backwards (another potential human failing) and you then run the same test? Please try to argue more effectively next time.

Curt


jt512


Oct 15, 2003, 4:25 PM
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My two cents: In the hands of a competent user the gri-gri is marginally safer than an ATC. A competent belayer will, by definition, be able to catch a fall with either device. Competent belayers don't take their brake hand off the rope with an ATC. Competent belayers do get distracted, but they can still catch a fall, even if caught off guard. The extra safety from the gri-gri comes down to this: if your belayer gets taken out by rockfall, you have a better chance of still being on belay with a grigri than with an ATC.

What about in the hands of an incompetent belayer? Empirical, though informal, evidence seems to suggest that the ATC may be safer, as paradoxical as that may seem. As Dan mentioned, there seem to be more accidents with gri-gris than with ATCs. I'd put the ratio at about 3:1, despite the fact that ATCs are the more common type of belay device.

I am convinced that > 99% of grigri accidents occur because the belayer interferes with the proper functioning of the device, either by holding the cam open or by hanging onto the leader's side of the rope instead of the brake side. The latter action reduces the tension in the rope, preventing the cam from locking. These errors can occur because normal use of the grigri involves letting go of the brake side of the rope to hold the cam open in order to feed slack when the leader needs to clip. Incompetent users then fail to put their hand back on the brake side of the rope, setting the stage for an accident. Operation of the ATC, in contrast, is simpler. The brake hand never leaves the rope, and the belayer need only move his hand into the braking position to arrest the fall.

New grigri users must learn to take their brake hand off the cam and replace it on the brake side of the rope the instant that they've pulled out enough slack for the leader to clip. It is not so much that the brake hand is needed to lock off the rope (though under some circumstances it is), but that when it is on the brake side of the rope, it can't interfere with the device's autolocking function. No one should belay with a grigri until they have learned to return their brake hand to the correct side of the rope reflexively. This applies both to beginning climbers and to experienced climbers who are used to belaying with an ATC. I know of at least one serious accident in which a long-time climber dropped her partner because she was not sufficiently trained in safe usage of the grigri.

-Jay


alpnclmbr1


Oct 15, 2003, 4:35 PM
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That is a great explanation of why I wouldn't say a grigri is safer than an atc in general use.


static_climber


Oct 15, 2003, 5:03 PM
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i like being belayed by a gri gri but hate belaying with one on a sport climb. and only use them when i have a unexperinced climber belaying me.


jt512


Oct 15, 2003, 5:32 PM
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In reply to:
i like being belayed by a gri gri but hate belaying with one on a sport climb. and only use them when i have a unexperinced climber belaying me.

I think you should (re-)read my post.

-Jay


static_climber


Oct 15, 2003, 6:06 PM
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jay i never read ur post but i dont let unexperienced climbers belay me on sport climbs only on tr


rockclimber412


Oct 16, 2003, 6:03 AM
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I work at a climbing wall, and we use gri gri's. I have seen one fail. It would not even lock up any more, the rope would just slide through. I think they can be dangerous if not properly cared for, and after continuous hard usage. just inspect it before you use it especially once it gets some age on it


climb_plastic


Oct 16, 2003, 6:40 AM
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In reply to:
I work at a climbing wall, and we use gri gri's. I have seen one fail.

I think if your gym used atc instead of gri gri you probably would have seen more than just one failure at your gym. I can't say that for sure though because I haven't seen stats on it but I do know some gyms have switched to gri gri because of falls and will likely never switch back even though they're not cheap.


micahmcguire


Oct 16, 2003, 8:09 AM
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nothing about climbing is idiot-proof, but with a bit of understanding; yes the gri-gri is safe


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