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51T Top sprocket|Max
Easy to push the thumb switch when gripping the top of the TT extension
the recommended fill rate on road is 25-30% and on track 15-20%
the lever ensures smooth actuation and responsive braking performance
helps improve comfort and performance
Shimano Front Chainwheel FC-M311-L 3X7/8Speed X-CarboCam 51T Top sprocket|MaxThe square bottom bracket compatible Shimano Altus FC M311 crankset is comprised of a rigid 2 piece design and Hyperdrive SG X chainrings. An optional chain guard is included with pre installation for protection against dirt and debris. It also features Dual SIS compatibility. Chain guard compatible. Chainwheel, number of teeth: 42x32x22Fitting for derailleur: 7 speed 8 speedMaterial: aluminum, steelType of chain: HG 7 8 speed
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