CeramicSpeed 61903 Standard Bearing - (6903)

CeramicSpeed 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

Bearing I.D. (mm)	17
Manufacturer Number	61903 (6903)
Bearing O.D. (mm)	30
Material	Ceramic
Thickness	7