CeramicSpeed cartridge bearing kits for wheels is an upgrade option that provides extremely low friction, improved power transfer, and a service life that far exceeds traditional steel bearings.
- Grade 3 Silicon Nitride balls
 - Hardened races
 - Reinforced polyamide cage and non-contact seals
 - Hand built in Denmark
 - High resistance to poor lubrication
 - Includes 4 X 61803   1 X 61903   1 X 61804 bearings
 - Fits NSW (NOT DISC) Before mid 2018 (1st gen)