![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?width=1080&crop=smart&auto=webp&s=a09cd22dd4c42f5ee17f5fbf54a1800ed80d25d7)
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
![maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange](https://i.stack.imgur.com/NlWQD.png)
maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange
![Mtb Mountain Bike Rear Hub 7 Speed Cassette 7s Flywheels Sprocket Bicycle 11-28t 11-32t Alloy Steel Bicycle Accessories Parts - Bicycle Freewheel - AliExpress Mtb Mountain Bike Rear Hub 7 Speed Cassette 7s Flywheels Sprocket Bicycle 11-28t 11-32t Alloy Steel Bicycle Accessories Parts - Bicycle Freewheel - AliExpress](https://ae01.alicdn.com/kf/Hc71696978e0c46c5a72ef8b0fd3f1b709.jpeg_640x640Q90.jpeg_.webp)
Mtb Mountain Bike Rear Hub 7 Speed Cassette 7s Flywheels Sprocket Bicycle 11-28t 11-32t Alloy Steel Bicycle Accessories Parts - Bicycle Freewheel - AliExpress
![maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange](https://i.stack.imgur.com/Ldg5o.png)