ZTTO 10 Speed 11-50T MTB Mountain Bike Cassette Freewheel Bicycle Parts 10s 11-50t

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 black and silver color has a fine appearance and will give you a luxurious feel.