I was considering getting some new wheels this year and had pretty much settled on something with the Pacenti SL23s, but these looked like a potential alternative.
http://forums.roadbikereview.com/wheels ... 16125.html
One other user on that forum also posted a picture of their cross bike running these rims.
These seem like they would be an upgrade all around from Kinlin XR19W and the only sub-400g alternative to Stan's Alpha 340 which have thin brake surfaces and don't hold tires securely.
So my conclusion is if it were between those two rims I would pick the A23 for daily use and the 2218 for a great climbing wheelset or rough rough road wheel set (given your 150lb weight).
http://amplewritings.blogspot.com/2013/ ... eless.html
Note he says it was a NDS spoke. Since it is triplet laced I'd expect the NDS side to be most highly stressed (lateral forces) and the angle is extreme. Ideally a triplet rim should have an asymetric inner wall.
It also appears to have a small bead lip like the 340, so I suspect it will suffer from the same issue of some tires not hanging on very well.
prowheelbuilder wrote:Have yet to see this happen with any of our builds using the 2218 rims. However it is very important that they not be built over 120 kgf.
That one was built by AC. And it was a NDS spoke on a triplet, which surely wasn't too highly tensioned.
Lowering tension doesn't prevent fatigue on aluminum, but it can make it last long enough that you don't care.
How much does tension drop with a tire installed? On the 340s it's a lot.
AC is the only one crazy enough to make ~300g rims and there are few people crazy enough to use them for everyday wheels.
And he increased the tension only to try to compensate for the large drop in tension with tires mounted, to keep the spokes from working loose. I'm not a big fan of tubeless rim design, especially with light rims. Tension always varies a lot depending on the tire that is mounted.
Rims like that are best for light riders anyway, and triplet needs a pretty strong and stiff rim to work well. I think it would be better with normal lacing and more spokes.
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