ZIPP ZM1 3ZERO Rear Bearing (x2) #11.2018.060.004

The ZIPP Rear bearing is a complete replacement kit for ZM1 rear hubs and 3Zero Moto wheels, containing two different bearing references to cover all hub contact points. It refreshes a hub that has developed play or lost its smoothness after several seasons of riding.

Manufactured from steel, this kit combines a 6903/61903 bearing and a 63803D28 bearing to restore smooth, precise rotation. Replacement requires the appropriate press tool for ZIPP hubs to ensure proper installation.