Optimise your wheel with CeramicSpeed Wheel Kits and feel the difference immediately. A CeramicSpeed Wheel Kit reduces friction - the result is higher top speed. The bearing lifetime is proven to be 3-5 times longer than standard wheel bearings. The high velocity of wheel bearings means that bearing friction can have a huge impact on performance. Campagnolo and Fulcrum hubs, both front and rear, use loose balls in a cup and cone design – kit Campy 1. The Cassette body on Campagnolo and Fulcrum uses two bearings – kit Campy 2. Note that Fulcrum R5 is not compatible with these kits.