Zipp, CeramicSpeed 177, Freehub, Freehub Body, Shimano HG 11, 11, 00.1918.183.007

Description

* Lowest resistance hybrid ceramic (ceramic balls and steel cages) available* Measurable wattage savings between 1.5 and 9 watts per bearing set, depending on the level and condition of your existing bearings* Kits include Freehub body with CeramicSpeed bearings pre-installed for easy installation onto the wheel* SRAM Model ID: HU-SPP-A0