13 - 14 - 15 - 16 - 17 - 19 - 21 Teeth
It is generally good practice to replace the chain when you replace the cassette.
We recommend the SRAM PC-870 chain for use with this cassette.
This cassette will index with any Shimano-type 7-speed shifter.
This cassette will fit on any Shimano 7-speed hub
Are you sure you need a cassette, not a thread-on freewheel?
Click here to find out which type your bike needs!