Shimano FC-R8100 Crankset

The SHIMANO ULTEGRA FC-R8100 Left Crank Arm is a non-drive side component designed to complement a 12-speed ULTEGRA drivetrain. Built with HOLLOWTECH II technology, it aims to provide a balance of stiffness, strength, and low weight for efficient power transfer. Finished in black and crafted to integrate with road and gravel setups, this crank arm emphasizes precision and reliability for high-performance riding.

Features

• Hollowtech II for stiff, lightweight performance
• Non-drive side left crank for ULTEGRA 12-speed
• 24mm spindle interface, 148 mm Q-factor
• Chain line 44.5 mm for compatibility
• 165 mm length option for fit and planning

Technical specifications

• Technology: HOLLOWTECH II
• Compatible drivetrain: SHIMANO 12-Speed Road
• Q-factor: 148 mm
• Chain line: 44.5 mm
• Spindle interface: 24 mm