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Average Rating = 3.55/5 Average Rating : 3.55 out of 5
Item Details | Reviews (11)
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Manufacturer: DMM

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DMM 3CUs have a number of features that set them apart from other small-crack protection devices. Each piece is clearly color-coded, from cam lobes to trigger bars to slings. Extendable slings save you quickdraws. Each piece is rated to 14kn, down to the smallest size.

Available in a range of unmistakable, color-coded, clearly marked sizes, DMM's new three cam units feel so light in the hand it's hard to believe how incredibly strong they really are. A reduced span across the spindle means they can be placed in the tiniest of pockets and are ideally suited to other awkward placements. 3CUs work especially well because of their tendency to always seat in the right direction when loaded. The smooth, efficient trigger action means you can get them in quickly, resulting in a fast and efficient placement - essential when time saved on a route is critical. The triggers on all devices are drilled with retrieval holes which can be threaded with cord to extract the cam from the most awkward or deepest of placements. We've also added both inboard and. outboard finger grips to them allowing even more placement options. All DMM camming devices have strength incorporated into their design. Being engineered using CNC technology DMM machines the cams from solid stock. With sizes .5, .75, 1, 1.25, 1.5 and 1.75 available and each fitted with a light, easy clipping, 12mm double looped dyneema sling, the 3CU is versatile range that offers high performance and peace of mind. All DMM camming devices have passive capabilities.

11 Reviews

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Review 4 out of 5 stars

Review by: sixleggedinsect, 2005-12-12

i think these are an excellent alternative to the metolius tcus. if you are on the market for tcus these place the same as metolius, perhaps with a slightly less snappy (and confidence inspiring) spring action.

Review 4 out of 5 stars

Review by: findingit, 2005-10-25

Well priced, lightweight, long sling and well built. The only drawbacks are the short stem length. I find it too easy to get these buried when you're trying to get them that little bit deeper for peace of mind. I carry them as doubles to my WC Tech friends.

Review 2 out of 5 stars

Review by: yay_chris, 2005-10-13

I am very disappointed in these cams. I have found that the 3CUs do not have the holding power of similar sized 4 lobed cams. I was surprised to see the DMM 3CUs pull out of cracks after hard yanks, whereas other cams would hold tight. I also think the plastic trigger is terrible. The gets stuck quite easiliy and feels 'cheap' and breakable.

Review 4 out of 5 stars

Review by: laxclmr, 2005-09-27

Bought a 1.25 on sale at REI for $30. Thought I'd give it a try. Took it to Palisade Head in MN and got some really good use out of it. The action is smooth, a little akward since the stem is flimsy wire. overall a good cam.

Review 4 out of 5 stars

Review by: omenbringer, 2005-03-23

These are a great addition to the DMM 4 cam units. I used to carry the smallest 4CU's but have since replaced them with the 3CU. When compared side by side the 3CU are about a half inch narrower than the same size 4CU, this feature is noticeable in most placements. Due to only having 3 cam lobes when placed these units tend to pivot around instead of walking out of there placement. Should the unit walk, however, the milled cam stops are full strength adding a bit of reasurance. The U-stem is a great feature and coupled to the doubled extendable dyneema sling allows three clipping options, which often eliminates the need for a quickdraw. The free floating axles allow a bit of independent movement of the cams frame, a feature which is most noticible while aiding. My only gripe is that DMM should put out at least one smaller size like there sister company WC did. I often find placements where the smallest DMM 3CU (the .5 with 13-19mm of expansion range) is to big yet the WC tech friend 00 (expansion range of 10-16mm) or Metolius 0 (with the same expansion range) fit perfectly. Overall these cams are suitable for any level of trad climber especially those looking for great cams at a bargain price.

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