20 Pieces Bike Bicycle Bottom Bracket as shown picture, Red, Black
Change the speed: The bike cassette speed adapter designed for 10 speed freehub washer lets you fit 11 tier cassettes seamlessly. Gaskets matched to 7, 8 and 9 speed freehub bodies convert low tier hubs to accommodate 10 or 11 speed cassettes, while dedicated 7 speed freehub rings enable 7 tier hubs to install 8 and 9 speed gear cassettes.