CeramicSpeed 61903 Coated Bearing - (6903) Coated Bearing Race. CeramicSpeed cartridge bearings with coated race are a premium upgrade option that provide extremely low friction improved power transfer and a service life that far exceeds traditional steel bearings. These bearings feature coated races that provide the ultimate performance and longevity.Grade 3 Silicon Nitride balls
The coated bearing races increase the bearing service life by providing extreme hardness to the race and reducing corrosion
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
Limited Lifetime Warranty
- TECH SPECS
| Bearing I.D. (mm) | 17 |
| Bearing O.D. (mm) | 30 |
| Manufacturer Number | 61903 (6903) coated |
| Material | Ceramic |
| Thickness | 7 |