WASTE NOT, WATT NOT
In the never ending quest to make athletes faster on their bikes, Zipp is constantly testing and refining. As you pedal your bike, there are a known set of resistive forces continually stealing energy away from your athletic efforts. One of these forces is drivetrain friction.
To achieve the perfect balance of performance, durability and cost, Zipp hubs are machined to the closest tolerances possible and are supplied standard with steel bearings of the highest grade available.
But, for cyclists looking for that extra advantage, Zipp has partnered with CeramicSpeed to create specific ceramic upgrade bearing kits for use in all Zipp hubs and free hub driver bodies. These kits are all available now, and offer the following:
Zipp CeramicSpeed Bearing Kit 61803/61903
One kit required for: Zipp Super-9, 900 tubular and Sub-9 disc rear hubs.
Bearing Kit 61903 / 691803
Bearing Kit 61803 61903:
Inner Dia: 17mm, 17mm
Outer Dia: 26mm, 30mm
Width: 5mm, 7mm
Product # 00.1918.183.002