CeramicSpeed Wheel Bearing Upgrade Kit: Zipp-9 (NSW Hubsets)
An upgrade option for cartridge wheel bearings that offer 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