You'll find the best components at Escapa. TheShimano TZ21 7-speed Cassette isthe ideal replacement for your old, damaged cassette.
The Shimano TOURNEY TZ 7-speed freewheel features a MEGARANGE of 14-34T.
Sprockets: 14-16-18-20-22-24-34T
Compatible with HG/UG chains
Speeds: 7