CeramicSpeed cartridge bearings are an upgrade option for any cycling discipline. These bearings provide extremely low friction, improved power transfer, and a service life that far exceeds traditional steel bearings.
- Grade 3 Silicon Nitride balls
- Hardened steel races
- Reinforced polymide cage and non-contact seal to keep dirt and moisture out
- High resistance to poor lubrication
- Can be used for any cycling discipline
- Sold as each
- Hand built in Denmark
Specifications:
- Bearing I.D. (mm): 17
- Manufacturer Number: 61903 (6903)
- Bearing O.D. (mm): 30
- Material: Ceramic
- Thickness: 7