Torsion Spring

Description

The Keiser Torsion Spring, part 555405-M3, is an OEM replacement spring used in the flywheel crank assembly of select Keiser indoor bikes. If you are servicing worn or damaged keiser m3 parts, this small but important component helps restore proper crank and flywheel function on the M3 platform.

• Fits Keiser M3 indoor cycling bikes and is used within the flywheel crank parts assembly.
• Replaces original Keiser part number 555405, listed as Spring – Torsion in exploded parts diagrams.
• Commonly referenced for m3 flywheel crank parts torsion spring replacement when repairing crank-related movement issues.
• Designed for compatibility with the Keiser M3 bike line; always confirm your model and diagram before ordering.

This keiser torsion spring is a genuine manufacturer replacement part built to match the original fit and function of the factory-installed spring. It is intended for use in the crank and flywheel area, where proper spring tension supports smooth operation of the assembly. Because this is a precision internal component, installation is best suited for owners or technicians comfortable with light mechanical repair and parts-diagram reference. Replacing a fatigued or broken spring can help restore dependable performance without replacing the full crank system, making it a smart, cost-effective maintenance solution for your Keiser bike.

OEM-quality replacement with dependable fit, straightforward serviceability, and fast shipping from our warehouse.

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