Force Crank Arm Assembly E1 – SRAM Force Crank Arm Assembly – 170mm,
SRAM Force Crank Arm Assembly – 170mm, 12/13-Speed, 8-Bolt Direct Mount, DUB Spindle, Carbon, E1. Form and function. The design of the Force crankarm is a wonder of carbon; light and stiff to effortlessly propel you forward.