Hooked rim construction separates the Alpinist CLX II from the hookless trend that has swept through carbon wheel design. Roval's engineers maintained the hooked bead interface specifically to preserve pressure flexibility and tire compatibility, allowing riders to run tubeless setups at pressures reaching 110psi or mount traditional clinchers with tubes at 130psi. That versatility matters for climbing-focused wheels that see varied terrain across a single ride: efficient high pressures for paved approaches, then compliance-oriented lower pressures when descents turn rough. The Alpinist CLX II front wheel delivers this adaptability while achieving weights that rival dedicated tubular race equipment.

The 33mm rim depth reflects a deliberate choice to prioritize low rotational mass over aerodynamic optimization. At the front wheel position where crosswind stability influences handling confidence, the moderate depth maintains predictable steering feel in gusty conditions while the 27mm external width creates smooth aerodynamic transitions with modern tire profiles. The 21mm internal channel supports tire widths from 24mm race rubber through 38mm all-road options, with the hooked bead providing secure retention across that range.

Roval's LightAF hub architecture sits at the center of the weight reduction strategy. The low-profile hub shell and machined Center Lock rotor mount carved 50 grams from the previous Alpinist CLX design at the hub alone. Inside, DT Swiss 180 Ratchet EXP internals handle engagement duties while SINC ceramic bearings manage the load path with reduced friction. The ceramic bearing system was developed as an integrated package with the hub shell geometry rather than retrofitted from existing designs, optimizing every interface for minimal rolling resistance.... Read More