ZTTO MTB 9s 11-40T Cassette GOLD Mountain Bike Bicycle Freewheel Golden Wide Ratio Parts 11-40t

Description

Made of high tensile steel material , makes it more WEAR RESISTANT and has extreme resistance to abrasion. The unique design of the gear sprocket exclusively for mountain bike, provides you a better experience to control the shift function. Adopted the hollow design to reduce the weight to some extent. The surface is hard to rust and provides a long service life. And the surface of golden color has a fine appearance and will give you a luxurious feel.