Had the Croll out on real MTB trails today, and happy to report it does equally well on the trails as on the road. I was actually quite surprised to be catching a fair number of hard-tail MTB's and riding off the berms and jumps so well. It climbs better than I thought it would. Wrists a bit sore from some of the rocks and logs, but that's the rigid thing more than the drops. Best thing was instead of tossing it on a car rack like the full spen's, I just rode home on it (took the long way back).