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 ballsThe coated bearing races increase the bearing service life by providing extreme hardness to the race and reducing corrosionReinforced polymide cage and non-contact seal to keep dirt and moisture outHigh resistance to poor lubricationCan be used for any cycling disciplineSold as eachHand built in DenmarkLimited Lifetime Warranty
| Bearing I.D. (mm) |
17 |
| Manufacturer Number |
61903 (6903) coated |
| Bearing O.D. (mm) |
30 |
| Material |
Ceramic |
| Thickness |
7 |
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