I just finished building a 36" wheel for a friend using the UDC’s new Stealth rim, 14 g ss spokes, new Nightrider tire and UDC ex wide hub.
I love the new tire. Its a total win compared to the Wheel TA and Coker tire. Its the first 36er tire I have seen that looks was made in a real bike tire factory -in this century . . . and not like some factory second from the rick shaw tire retreading industry! The tire mounted easily (even with the 29er tube I use) and the bead centered really quickly at under 20 pounds with no blow-offs.
I had a couple of thoughts about the rim. Feel free to post your thoughts on this:
The pinned joint is great. No bumpy weld like on the Airfoil
The rim is less deep than an Airfoil, requiring you to build a 3-cross wheel with these components. I loke 4-cross better for 36ers, but a small concession really. Eyelets are perfectly sized for the nipples that come with the UDC ss spokes.
The wheel went together smoothly and trued up nicely.
Initially, I really liked the look of the “machined” braking surface . . . . . until I finally laced it up gave the wheel a spin in the truing stand and saw that the machined braking surface was horribly unevenly ground away!! . . . creating big valleys and hills that actually made it harder to true the wheel. Some of the variations were around 2-3mm. It looks like a blind monkey with ADHD and a case of the shakes got a hold of an electric disk sander and went on a grinding rampage at the Nimbus factory.
For those using a brake, it makes the rim a LOT less useful and kind of a shame that it mars an otherwise nice product. My friend runs without a brake, so I couldn’t tell how much this would effect brake performance. If I were UDC, I’d get after the nimbus matal finishers to upgrade to the 21st century or at least plan to offer customers the choice of virgin or “machined” brake surface so we can machine them ourselves . . . . or talk to Scott Wallis and U-turn to find out if they will show you how they machine an Airfoil’s braking surface.