SRAM Left Arm and Power Meter Spindle RIVAL E1 DUB

Introducing SRAM’s most advanced alloy crank design to date, the SRAM Rival AXS E1 Power Meter Spindle is an advanced way to upgrade your standard non-drive crank arm to an ultra-accurate power meter. This SRAM Rival E1 Left Arm and Spindle is purpose-built for riders who demand reliable, high-performance components, and an accurate power measurement for more effective training. The arm and spindle feature a lightweight (<30g heavier than a standard spindle) power meter built directly into the DUB™ spindle, measuring left side power to calculate total power output in a sleek package.