BlackBearing Ceramic 6801-2RS Bearing 12x21x5 mm

The BlackBearing Ceramic 6801-2RS bearing has been developed to meet the demands of cycling, whatever your discipline (road, mountain biking, cyclo-cross, etc.). They can be used on all parts of your bicycle that meet the 12x21x5 mm dimensions, whether for wheel hubs, derailleur pulleys, MTB frame pivot points, or other components.The ceramic quality allows for lighter bearings, better performance at very high rotational speeds, and a longer service life than standard steel quality. Another important advantage is the much lower level of friction, which ensures better efficiency and therefore less energy loss when pedalling. It also means greater rigidity, greater precision and greater resistance to compression. In short, ceramic bearings deliver the best performance for cyclists looking to optimise the performance of their bike.

- Silicon nitride balls - Steel cage - Treated stainless steel rings for improved mechanical resistance - Grease specially adapted for ceramic bearings- Low-friction 2RS seals: water and dust resistant - Internal diameter: 12 mm - External diameter: 21 mm- Thickness: 5 mm
- Reference: 6801-2RS