Experience the difference the 'M Part' CARTRIDGE BEARING MR20307 2RS 20x30x can make to your bike rides. Universally fitting and versatile, this product truly represents the pinnacle of bicycle-specific cartridge bearings.

We make no compromises on quality, matching the exact specifications and high standards set by the world's leading bike brands. The use of a steel retainer, CrMo races and CrMo ball bearings, hardened to a Rockwell rating of 61-66, ensures durability and a long-lasting performance.

All of our bearings are rated ABEC-3, allowing for precision accuracy while reducing noise and vibration - perfect for those smooth rides and sharp turns. Furthermore, we use Multemp SRL (Kyodo Yushi) Grease in our bearings, delivering an exceptional service life and high resistance to heat and pressure.

Make the smarter choice, for your bike and your riding comfort, choose the 'M Part' CARTRIDGE BEARING MR20307 2RS 20x30x.