PRO Crank Protector Crank Sleeve For MTB Suits FC-M9100, FC-M9120, FC-M9130 AI New rim bed shape makes

New rim bed shape makes it easier to mount and change tires

40mm deep/26mm wide NACA profile optimized for rim brakes

Use of special high-modulus CFRP fibers

5” & 29” bikes MATERIAL 100% Makrolon® polycarbonate shell / Reinforced aluminum internal frame COMPATIBILITY Front: Compatible with QR skewer or 12 mm x 100 mm thru axle (Road bike disc)

Narrower position at the hoods for watt-saving aerodynamic efficiency

PRO Crank Protector Crank Sleeve For MTB Suits FC-M9100, FC-M9120, FC-M9130 AI New rim bed shape makesThe PRO Crank Protector is a thermoplastic rubber protector for the end of SHIMANO cranks. It is compatible with FC M9100, FC M9120 and FC M9130 mountain bike cranks. Features MTB crank end protectorConstructed from thermoplastic rubberCompatible with SHIMANO FC M9100, FC M9120, and FC M9130 cranks Mfr Claimed Weight TBC