Shimano 105 FC-R7100 12-speed Crank Optimal balance of stiffness, strength, weight and rotational performance HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting Optimum power transfer Best balance for lighter weight and efficiency New designed crank arm Maintains high rigidity and reduces weight 4-arm construction crankset Iconic design Product features Use: Road Group: 105 Di2 R7100 Model: FC-R7100 Q-factor: 148mm Gear rear: 12-speed Construction: Hollowtech II Compatible chain: CN-M7100 HG 12-speed Material Crank arm: Aluminum Anodized.
eBay