Stages Left Crank Arm (Part #000-7678) Genuine Stages left crank arm compatible with SC1 and SC2 indoor bikes. This factory-authorized replacement is designed specifically for non-power meter configurations and installs directly with no modification required. ✔ Compatible Models:• Stages SC1• Stages SC2 ⚠ Not compatible with SC3. The SC3 model uses the Stages Power Meter as the left crank arm. If your left crank arm is stripped, loose, or damaged, replacement should be completed promptly to prevent bottom bracket damage or drivetrain wear. This proprietary Stages component is built for commercial studio environments and ensures proper crank alignment and long-term drivetrain performance. Inventory Update: Limited inventory arriving late February. Additional shipment arriving mid-to-late March. Orders ship in the order received. Indoor Cycle Pros carries one of the largest inventories of genuine Stages replacement parts available and ships worldwide.