What Our Gearhead(R) Experts Are Saying:"The FlatStop bead hooks hold a tubeless tire through the pressure spikes I get when hitting gravel at speed. I've run these into rough sections that would have burped a standard rim and the tire stays seated."Why We Like ItThe Chopped Aero Speed rim profile delivers the aerodynamic drag of a much deeper road wheel at the weight and crosswind stability of a shallow gravel rim. That trade-off is the whole story on a race wheel built for variable terrain, since aero gains are only useful when the wheel stays predictable in a headwind.