Shimano FC-R9100 172.5 36T-52T Kampiakseli

The choice of the world's best climbers, sprinters, and time trialists, the DURA-ACE R9100 crank drops weigh while maximizing power transfer. The new 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.

• Optimum power transfer
• Best balance for lighter weight (-7 g) and efficiency
• New designed crank arm
• Maintains high rigidity and reduces weight
• HOLLOWGLIDE
• 4-arm construction crankset
• Adapted for race specific disc brake system
• Shorter length of rear center with O.L.D.135 mm
• Redesign the gear teeth profile to fit wider gear pitch
• Rider tuned gearing options
• Iconic design