ZIPP 30/60 61903 Ceramic Rear Bearing (x2) #00.1918.183.001

The ZIPP 30/60 Rear ceramic bearing kit fits the rear hub of the 30/60 range with 61903-format hybrid ceramic bearings, as a direct replacement for the original steel bearings. This upgrade reduces internal friction and hub starting torque, for a measurable gain in rolling resistance.

Sold as a pair, this kit enables both the preventive maintenance of an ageing hub and the performance upgrade of a hub still in good condition. Installation requires the appropriate press tool for ZIPP hubs.