Upgrade or Replace with Confidence
The Shimano Left Hand Crank Arm Unit delivers the legendary reliability and performance Shimano is known for. Designed as a direct replacement or upgrade for compatible Shimano cranksets, this left-side crank arm provides smooth pedaling power transfer and durable performance ride after ride.
Whether you’re working in a home shop or at your local bike shop, this crank arm is designed for straightforward installation with standard crank pullers and bottom bracket tools (sold separately). Ideal for riders maintaining older bikes or refreshing worn components.
Perfect For:
🟢 Cyclists replacing a worn crank arm
🟢 Riders restoring a vintage or modern Shimano crankset
🟢 Anyone seeking reliable drivetrain performance
