105 CS-R7101 12 Spd. Wheels a straw magnet mount for

a straw magnet mount for streamlined aero over the top of the system

enhance energy transfer

STX protective gear delivers an anatomically contoured

Adhesive back for easy installation

Low battery status is indicated by rapidly flashing sidelights

105 CS-R7101 12 Spd. Wheels a straw magnet mount forA 12 speed cassette range that brings versatility to any rider or road From sprinting on the flats to climbing steep inclines, the 11 34T cassette has you covered. It is compatible with both SHIMANO 11 speed and 12 speed FREEHUB bodies. FEATURES: Refined 12 step gear combination provides peak efficiency and accelerating performance for every situationCompatible with new 12 speed and road 11 speed FREEHUB body Product Specifications: MODEL NO CS R7101