I have a folder on my computer labeled as such, where I put pictures of of my failed parts, bikes, etc. Yesterday, got to the enduro race nice and early, sat around for a while, but decided to take a lap on the lower jump trail to just make sure everything was running nice. Once I got to the bottom, I noticed this: It's not the first time..it's the second time for me. I have 5 sets of carbon rims for 10 rims total and this is the second one I've done this to. I think failed in much the same way as the first, slamming it on a rock with pressure too low. I think it happened 2-3 rides before this enduro though and the lap on the jump trail just made it propagate more to where I noticed it. It was holding air just fine though. So I had to head back home fast, take the spare Spank wheel that I built up and switch over the cassette and tire and race back to the start of the race, which the director actually held for me. Ironically, someone busted a rim during the race, a metal Spank, but same thing, running pressure too low and I suspect it's where I cracked the carbon rim. I kind of enjoy building wheels anyway and I have a whole bunch of new nipples, so it'll be pretty easy. I may try to repair this one after getting a new rim, I has some extra carbonz. So, what 'cha got? Let's see some pictures.