REI Peak UL Carbon
Price Paid: $149
Nice and light. However, after a few trips one of the poles wouldn't "lock up" under pressure; e.g. when I was going downhill and put my weight on the pole. It would collapse.
This seems to be a common problem with these poles as reported by other reviews in other forums.
A real pain. I returned them and now have some Black Diamond Spires which (because of the locking mechanisms) are the best poles that I have ever owned!
I've used the poles extensively now, and I purchased them to replace the considerably heavier Leki non-shock titanium poles I had previously.
During the first trip the lock in the smallest diameter pole came out and remained stuck inside its mating tube: this was quite difficult to remove - finally I put a high grade epoxy in the empty tube, shoved it back into the appopriate mating tube (where the stuck lock remained) and waited overnight. The glue held and I was able to remove the smallest diameter pole from its mate - no problem from then on.
I would have returned the offending pole to REI, but I was in New Zealand for another 6 months and that wasn't an option. The repair is still holding.
I also am not 100% happy with how often the poles collapse, seems about every 2 hours of hiking things loosen up. If I make a point of re-tightening them every hour or two they won't collapse, but of course they shouldn't require that (the Leki poles never had this problem and would stay tight all day). I suspect it is hard to design a lock that can grip the inside of a carbon fiber tube, especially for the smallest diameter lock.
Still, other than that issue they have held up well and continue to function after about 1,000KMs of use. They don't corrode (although the screw holding the lock in will corrode as it's not stainless or other non-corrosive material), and my Leki's did show internal corrosion after numerous water crossings. I think REI will get this design 100% correct on it's next iteration, but the poles are useable as is now.
Price Paid: $115
I'm a lightweight freak and I needed adjustable poles to set up my tent. These were the lightest adjustable ones I could find. There are lighter but I think these are pretty strong. They are made by Komperdell.
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The REI Peak UL line™the lightest, strongest trekking poles out there! Made for minimalist backpackers and adventure racers. Small-diameter carbon fiber creates ultralight poles that damp vibration and retain strength over a wide temperature range. Extra-strong DuoLocks™ provide a big boost in performance. DuoLocks internal locking mechanisms apply a wide area of pressure against pole walls to lock in length adjustment. DuoLocks showed 50% more holding power than other locking mechanisms during REI lab tests. DuoLock's reliability enhances stability, eases length adjustments and offers a compelling reason to upgrade to Peak UL poles. Three-section telescoping poles extend to a maximum length of 55'' and compact to 27'' for easy storage and transport. Red ''stop'' ring indicates the maximum point to which poles should be extended. Ultralight EVA foam grips with an ergonomic, contoured shape and adjustable padded neoprene wrist straps provide miles of comfort. Fitted with vario trekking disks and extra-durable tungsten-carbide tips; rubber tip protectors included.