Zipp Ceramic Speed Bearing Upgrade Kits Stock Item:Zipp CeramicSpeed Bearing Kit - 61903 Modified - ZIPP 177 Rear Hub Shell - (Includes Bearings and One Grease Syringe) Made from industrial quality steel

Made from industrial quality steel

Magnet holds chain in place and makes the storage easier

Non-corrosive mineral oil

Discover the transformative benefits of PURE Performance + Race Ready Magnesium

- Tear resistance for the maximum mechanical grip on dry and wet surfaces together with the maximum resistance against punctures

Zipp Ceramic Speed Bearing Upgrade Kits Stock Item:Zipp CeramicSpeed Bearing Kit - 61903 Modified - ZIPP 177 Rear Hub Shell - (Includes Bearings and One Grease Syringe) Made from industrial quality steelZIPP CERAMIC SPEED BEARING UPGRADE KITS Watt Could Be Better? On race day, everything every loose flap of clothing, every calorie taken in, and every watt put out matters. For those looking for extra speed beyond our stock top grade steel bearings, Zipp is proud to introduce new hybrid ceramic bearings for the 77 77D and 177 177D hub, produced in partnership with CeramicSpeed. With measurable savings of 1. 5 9 watts, theyre the ultimate complement to