Featuring supersmooth CeramicSpeed grade 3 Silicon Nitride balls and hardened steel raceways, the 61901 (6901) Standard Bearing delivers superlow friction, better power transfer and increased life.
- 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
- Hardened steel raceways feature an ultrasmooth polished groove
- Can be used for any cycling discipline: road, TT, tri, track, cross and MTB
- Inner diameter: 12 mm; outer diameter: 24 mm; thickness: 6 mm
Imported.
View all CeramicSpeed Bike Bottom Brackets| Best Use | Cycling |
|---|---|
| Weight | 10 grams |