Eyelets give the spoke nipples a nice place to rest. After my recent experiences, I would recommend getting a rim with eyelets if possible. I had built up a wheel using a GSport Ribcage rim, which is supposed to be a nice rim, although it's not eyeleted. After popping the heads off of four spoke nipples in just about as many rides, I was suspecting that the sharp edges around the spoke holes were cutting through the nipples. I decided to re-lace the wheel using an eyeleted rim to see if that was the problem, and sure enough, it's been trouble free since. I'm guessing that a unicycle wheel is more susceptible to damaging the spoke nipples where they meet the rim due to the twisting forces we put on them.
Say that to the KH 2005 cranks I bent in 2 days 😉 Though I agree that the 2007 stuff, and the 2005 rims were just kicking!
Differences would be that the Koxx rim is designed for trials BIKING, and KH is designed for uni trials, not a big difference, but worth noting. The KH is as strong, wider and cheaper. Koxx comes in more colors.
