Fits all shimano 8 gear systems.

Tooth combination:

12-23: 12-13-14-15-17-19-21 and 23

12-25: 12-13-15-17-19-21-23 and 25

13-26: 13-14-15-17-19-21-23 and 26

Assembly:

The cassette is placed over your rear hub and secured with a locking ring at the end which is tightened with a key (puller) which has 12 pins.

The locking ring comes with this item!

Guide to changing the cassette