Shimano Dura-Ace FC-R9100 11 Speed Crankset Size:175mm M (25 mm): for rims

M (25 mm): for rims with internal width between 20 and 25 mm

Optimized for tires measuring 24mm-30mm

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Quick Link: PowerLock™ 11S Silver

Shimano Dura-Ace FC-R9100 11 Speed Crankset Size:175mm M (25 mm): for rimsThe choice of the world's best climbers, sprinters and time trialists, the Shimano Dura Ace FC R9100 11 Speed Crankset drops weight while maximizing power transfer. The design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options. Specifications Lengths: 165mm, 167. 5mm, 170mm, 172. 5mm, 175mm Combinations: 55 42T, 54 42T, 53 39T, 52 36T, 50 34T Chainline: 43.