Shimano Ultegra FC-R8100 Left Crank Arm - 170mm Black Model-Cliffhanger } Purpose built for mountain

} Purpose built for mountain bikers

99mm for SRAM DUB

Rail Material Titanox Saddle Cut Out Yes Material Synthetic Clamp Style Standard Rails Gender/Age Men's Color Black Weight 240 Defined Color Black Size Small/Medium

Burly outer knobs provide support while cornering

Shimano Ultegra FC-R8100 Left Crank Arm - 170mm Black Model-Cliffhanger } Purpose built for mountainThe Shimano Ultegra FC R8100 left crank arm features HOLLOWGLIDE structure that cuts weight yet maintains strength for better power transfer and quicker more precise front shifting. Crafted with anodized aluminum for for high strength and light weight Color Black Length 170 Spindle Interface Type Hollowtech II Size 170Mm