Pulley

Description

The Keiser M3 Pulley is a precision replacement indoor cycling part designed for the flywheel and crank drive system on select Keiser M3 bikes. If you are servicing worn or damaged keiser m3 parts, this 330mm pulley helps restore smooth, consistent resistance and pedal operation.

• Fits select Keiser M3 indoor cycles using the 330mm flywheel/crank pulley configuration.
• Commonly used in M3 flywheel crank parts pulley replacement repairs where the original pulley is cracked, warped, or excessively worn.
• Manufacturer replacement part, SKU 550811-M3, for matching service and maintenance needs on compatible M3 models.
• Please compare your original component size and part details before ordering, especially on older or updated Keiser M3 production runs.

This keiser pulley is built to work within the bike’s belt-driven flywheel crank assembly and is specified at approximately 330mm diameter. As a manufacturer replacement part, it is intended to deliver reliable fit and function similar to the original component installed on the bike. Replacing a worn pulley can help reduce noise, improve belt tracking, and restore proper drivetrain performance. Installation is generally considered moderate difficulty and may require removal of related flywheel crank components, so basic mechanical experience and proper tools are recommended for best results.

Count on this OEM-quality replacement for dependable performance and a cleaner repair. Ships same day from our warehouse.

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