Pinion C-Line Gearbox, select C1.12, C1.9XR, or C1.6
The reliability of this gear box is absolutely second to none. This drive train removes the need to pedal while shifting gears. This is incredibly useful when dropping into a burly descent after a grueling climb
Fits the same drivers that are used for Shimano rear hubs (with separate purchase)
Unmatched climbing performance, and downhill durability
Black powder coated surface treatment enhances wear resistance
Gear Box Body: ultra light hot formed magnesium
Shifting in ~17% increments uniformly across the shifting range.