Crafted to reduce friction beyond even CeramicSpeed standard bearings, the CeramicSpeed 61903 Coated Bearing also has harder races, allowing it to last longer.
- Grade 3 Silicon Nitride balls are held in place by a reinforced polyamide cage
- Every bearing is optimized with low-viscosity CeramicSpeed "Blue Grease" to minimize friction and increase bearing life
- Noncontact seals complete the bearing, keeping dirt and moisture out
- Can be used for any cycling discipline: road, TT, tri, track, cross and MTB
- Inner diameter: 17 mm; outer diameter: 30 mm; thickness: 7 mm
Imported.
View all CeramicSpeed Bike Bottom Brackets| Best Use | Cycling |
|---|---|
| Weight | 13 grams |