Optimize your wheels with CeramicSpeed Hub Bearings to benefit from reduced friction and increased performance. The result is higher speed with the same effort, as well as a higher maximum speed. CeramicSpeed Wheel Bearings have a proven lifespan, which is 3-5 times longer than standard bearings. When upgrading with the special CeramicSpeed Coated Bearings, the lifespan will be further extended. All components are optimized for low friction and long life. In the package: 4 x 61802 bearings 2 x 61902 bearings UFO TECH All Round Decal