Bearing M3 Bicycle

Description

The Bearing M3 Bicycle is an OEM shielded bearing designed for Keiser indoor bikes, restoring smooth flywheel and crank rotation on compatible M3-series units. Ideal for owners shopping keiser m3 parts, this replacement helps keep your bike running quietly, efficiently, and ready for daily training.

• Direct replacement for Keiser part 555402-M3 and commonly identified as 6004ZZ shielded bearing.
• Fits compatible Keiser M3 and M3+ indoor bike flywheel/crank assemblies; suitable for many service repairs involving M3 flywheel crank parts bearing bicycle replacement.
• Designed for Keiser M Series bikes with fixed-gear drivetrain layouts and rear-flywheel design.
• Please confirm your model and existing bearing number before ordering, especially on older commercial bikes or rebuilt units.

This keiser bearing bicycle component is a factory-style shielded ball bearing built to support smooth, low-friction rotation while helping block dust and contaminants from the raceway. As an OEM manufacturer replacement, it is a smart choice when your original bearing feels rough, develops play, or creates noise during pedaling. The compact metal-shielded design is made for dependable indoor cycling use and is best installed during flywheel or crank service. Installation is generally moderate difficulty and may require disassembly of the affected assembly, along with proper tools for pressing or seating the bearing correctly.

Choose this OEM-quality replacement for reliable performance, smoother pedaling, and fast shipping from our warehouse.

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