ZTTO MTB 8 Speed Cassette 11-40 Black Freewheel 11-40T k7 8speed Lightweight and durable for M410 X4 HG cassette Mountain Bike

ZTTO 8S MTB CASSETTE

MATERAIL: STEEL
Color: black
WEIGHT: about 405G
11-13-16-20-24-28-34-40

*It is made of high tensile steel and made by the technology of quench-temper hardening. So it has higher strength, durability and has extreme resistance to abrasion. The strong antioxidation makes it hard to rust to have a long service life. Because of the unique design of the gear sprocket exclusively for mountain bike, you can control the shift function well.