Keiser Left Crank Arm

Description

The Keiser Left Crank Arm is a precision-fit replacement for worn or damaged pedal drive components on select Keiser indoor cycles. Designed for the popular M3 platform, this essential keiser m3 parts item restores smooth pedaling and secure rider power transfer on compatible bikes.

• Fits select Keiser M3 indoor cycling bikes and related M3-series configurations using the left-side flywheel crank assembly.
• Commonly used in Keiser M3 Flywheel Crank setups where the original left crank arm is bent, stripped, loose, or damaged from heavy use.
• Sold as the Keiser Left Crank Arm, SKU 555421-M3, for buyers searching m3 flywheel crank parts keiser left crank arm.
• Please compare your existing part number, bike model, and left-side crank configuration before ordering to ensure proper fitment.

This replacement crank arm is built to match the original mounting and alignment requirements of compatible Keiser bikes, helping maintain proper pedal stroke geometry and rider comfort. It is intended as a direct keiser left crank arm replacement part for the left side of the crank system and is ideal when the factory arm shows wear at the pedal threads or connection point. As a replacement component for Keiser M3 flywheel crank assemblies, installation is generally straightforward for owners familiar with basic bike maintenance, though a crank puller or related service tools may be required depending on your current setup. Always inspect the pedal, spindle interface, and opposite crank arm for wear during installation.

Count on this OEM-quality replacement for reliable performance and easy DIY service. Ships same day from our warehouse.

Shop the full range of Keiser M3 spin bike parts at Krislynn.