Shimano Ultegra FC-R8100 Left Crank Arm - 165mm Black ModelNumber=K0777 5 Primary Color Black Steer

5 Primary Color Black Steer Tube Length 170mm Steerer Tube 1-1/8 Steerer Tube Material Cr-Mo Wheel Diameter 20 Axle/Hub spacing 10x100mm Rake 25Mm Color Black

CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older Helmet Style Mountain Maximum Head Circumference 58 Defined Color Black

The proven internals remain the same with SwingLink driving our signature feel

Press-fit end caps allow tool-free maintenance and conversion Rear Axle 12mm Thru x 197mm Cassette Body Type SRAM XD Color Black Skewer Included No Bearing Type Sealed Cartridge Defined Color Black Spoke Interface J-Bend Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc

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Shimano Ultegra FC-R8100 Left Crank Arm - 165mm Black ModelNumber=K0777 5 Primary Color Black SteerThe 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 165 Spindle Interface Type Hollowtech II Size 165Mm