![Replacing friend's cassette. Found spacer. Is a 10 speed cassette. Don't know if it is 11 speed hub. Do I keep or throw? : r/bikewrench Replacing friend's cassette. Found spacer. Is a 10 speed cassette. Don't know if it is 11 speed hub. Do I keep or throw? : r/bikewrench](https://preview.redd.it/9sj3p1q1iex71.jpg?auto=webp&s=b7d6d2645f912ada05a103a1ef5e5b95ccd34458)
Replacing friend's cassette. Found spacer. Is a 10 speed cassette. Don't know if it is 11 speed hub. Do I keep or throw? : r/bikewrench
![Universal Cycles -- Shimano Cassette Spacers [Y1X400300, Y1X401500, Y1VT07000, Y1VN05000, Y1VN02000, Y4T724000, Y1Z807000, Y1Z805000, Y10R03000] Universal Cycles -- Shimano Cassette Spacers [Y1X400300, Y1X401500, Y1VT07000, Y1VN05000, Y1VN02000, Y4T724000, Y1Z807000, Y1Z805000, Y10R03000]](https://www.universalcycles.com/images//attributes/large/227284.jpg)
Universal Cycles -- Shimano Cassette Spacers [Y1X400300, Y1X401500, Y1VT07000, Y1VN05000, Y1VN02000, Y4T724000, Y1Z807000, Y1Z805000, Y10R03000]
![Problem Solvers 11-Speed Freehub Spacer for 10-speed cassette - Wheel & Sprocket | One of America's Best Bike Shops Problem Solvers 11-Speed Freehub Spacer for 10-speed cassette - Wheel & Sprocket | One of America's Best Bike Shops](https://www.sefiles.net/images/library/large/problem-solvers-chain-spy-copy-224624-1.png)