Multiple Unbound Gravel victories shaped the development priorities for this rim. Roval kept the Terra CLX carbon layup unchanged from the previous generation because the race results validated what lab testing suggested: the 32mm-deep profile with 25mm internal width handles the punishment of 200-mile Kansas flint without the fragility concerns that plague weight-focused designs. What changed sits at the hub, where Roval borrowed the Low Flange Disc architecture from their Alpinist CLX II climbing wheels and carved 50 grams from the previous Terra CLX build.

The Terra CLX II front wheel rolls on DT Swiss 180 Ratchet EXP internals housed in Roval's proprietary LFD hub shell. That combination delivers the engagement characteristics and serviceability that DT Swiss hardware provides while the low-profile flange design reduces rotating mass where it compounds with rim weight. SINC ceramic bearings handle the load path, reducing friction losses that accumulate over long distances. The 36-tooth ratchet provides 10 degrees of engagement, translating pedal input to forward motion with minimal dead spot.

Hooked rim construction separates the Terra CLX II from hookless gravel options that limit pressure ceilings. The hooked bead interface accommodates pressures up to 80psi for 28-32mm tires, dropping to 65psi for mid-width rubber and 60psi for the 47mm maximum. That flexibility matters when course conditions shift from hardpack to chunky limestone within the same event, allowing pressure adjustments without tire swaps.... Read More