SRAM PG-970 12-23 9 Speed Cassette Size:12-23 FeaturesLightweight

FeaturesLightweight

2 3/8" drive bits and sockets are made from tough

dual compound

About Shimano TZ500 14-34 7 Speed Multiple Freewheel CassetteThe SHIMANO TOURNEY TZ 7-speed freewheel features a MEGARANGE 14-28T range

sort out minor mechanicals

SRAM PG-970 12-23 9 Speed Cassette Size:12-23 FeaturesLightweightAbout SRAM PG 970 12 23 9 Speed Cassette Cassette technology optimized for MTB. More reliable. More durable. Better performing, thanks to an optimal tooth profile and shift ramp design for quick and positive index shifting. Go climb a mountain. Features SRAM's cassette performance is optimized by material choice, tooth profile and shift ramp design for quick and positive index shifting Narrow ratio cassette for the downhill fanatics in the crowd Steel