Shimano Ultegra FC-R8100 Left Crank Arm - 165mm Black CheckoutSpec= 47mm Chainline The aero-shaped barrel and wide

The aero-shaped barrel and wide steel base provide stability when pumping and the 3” top mounted gauge is easy to read up to 200 psi (14 bar)

Frame = the size of the seat tube the derailleur plus shim will fit

Designed for on the bike comfort the ergonomic preformed shape ensures a perfect fit while the integrated tech thread allows you to stay connected on the go

} REAR DERAILLEUR INNER CAGE XX1 EAGLE (52T) LUNAR INCLUDING SCREWS

Shimano Ultegra FC-R8100 Left Crank Arm - 165mm Black CheckoutSpec= 47mm Chainline The aero-shaped barrel and wideShimano Ultegra FC R8100 Left Crank Arm 165mm Black. The 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 TECH SPECS Color Black Length 165 Spindle Interface Type Hollowtech II