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BB30 bottom bracket for Shimano road cranks.

700c butyl tube fits 25-35c tires. Threaded 48mm valve stem with removable valve core.

ELEMNT BOLT is the first, fully aerodynamic GPS bike computer! Its patent pending design creates an integrated system of computer and mount which results in a CFD (Computational Fluid Design) tested, highly aerodynamic system built to be on the front of y

Simply put, the G23 exceeds the performance and ride quality demands of serious mixed surface cyclists. Armed against pinch flats, with a tough, relentless but refined character, it is the king of the the races that take you way out there.