CeramicSpeed 3/16" (4.762 mm) ball bearings
In each bearing, CeramicSpeed uses grade 3 silicon nitride balls that have the best possible surface finish and roundness, ensuring not only low friction when seated in hardened steel rings, but also unparalleled bearing life. When developing bearings for extreme performance combined with excellent service life, it is essential that the ceramic balls have excellent surface finish quality. Thanks to their high quality, CeramicSpeed balls are 400% smoother, 128% harder, and 58% lighter than standard steel balls commonly used in bicycle components.
product ID | 332425 |

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