CeramicSpeed 61903 Standard Bearing - (6903) ModelNumber=J1893 Misc Quick Release clamp

Misc Quick Release clamp

Model Brodium Spindle CrMo Size 9/16" Body Material Aluminum Color Silver Weight 399g

6 double tooth pawls (3 engage at a time)

Upper cup uses double sealed 5/32" ball bearings

CeramicSpeed 61903 Standard Bearing - (6903) ModelNumber=J1893 Misc Quick Release clampCeramicSpeed cartridge bearings are an upgrade option for any cycling discipline. These bearings provide extremely low friction improved power transfer and a service life that far exceeds traditional steel bearings. Grade 3 Silicon Nitride balls Hardened steel races 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