ZTTO 9 Speed 11-40T Cassette Black 9Speed 40T Freewheel 11-40 9s K7 Compatible MTB Mountain Bike M430 M4000 M3000

ZTTO 9S 11-40T CASSETTE

WIDE RATIO
Color: BLACK
MATERIAL: STEEL
Range: 11-40T
WEIGHT: About 510g

*This cassette is a cassette sprocket for 9-speed shift mountain bike.
*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.
*We adopted the hollow design, and the weight is reduced to some extent. The surface made by the technology of chrome plating. There is no fading on the plated surface. And the surface of black has a fine appearance and will give you a luxurious feel.

Attention
* We have got the reference description for you, please check the actual need with your bicycle before order this product.
* For your safety, please be careful with special tools when installing. If you do not install it, please go to a nearby bicycle manufacturers for help.
* Suggestion: If you want to replace a new cassette, you had better to replace the chain at the same time, otherwise the shifting system may cause significant noise and failures in working.