![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://i.redd.it/9sj3p1q1iex71.jpg)
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/253887.jpg)
Universal Cycles -- Shimano Cassette Spacers [Y1X400300, Y1X401500, Y1VT07000, Y1VN05000, Y1VN02000, Y4T724000, Y1Z807000, Y1Z805000, Y10R03000]
![Amazon.com : AEcreative 10pcs Bike Bicycle 7 8 9 10 11 Speed Cassette freehub Spacer 1mm 1.5mm 2mm 2.5mm 3mm Bottom Bracket Washer BB : Sports & Outdoors Amazon.com : AEcreative 10pcs Bike Bicycle 7 8 9 10 11 Speed Cassette freehub Spacer 1mm 1.5mm 2mm 2.5mm 3mm Bottom Bracket Washer BB : Sports & Outdoors](https://m.media-amazon.com/images/I/61ek9vz6EML._AC_UF1000,1000_QL80_.jpg)
Amazon.com : AEcreative 10pcs Bike Bicycle 7 8 9 10 11 Speed Cassette freehub Spacer 1mm 1.5mm 2mm 2.5mm 3mm Bottom Bracket Washer BB : Sports & Outdoors
![Problem Solvers 11spd Freehub Body Conversion Spacer for 10 speed Cassettes on 11speed Freehub - Modern Bike Problem Solvers 11spd Freehub Body Conversion Spacer for 10 speed Cassettes on 11speed Freehub - Modern Bike](https://static.modernbike.com/Product_Images/large_55694.jpg)