ZTTO 10 Speed Cassette 11?40T Mountain Bike Freewheel Cassette Sprocket for Road Bicycle

Feature: 1. Using high?strength steel, it has good corrosion resistance and heat resistance. 2. Made by tempering and quenching process, it has higher strength, durability and strong wear resistance. 3. With a hollow design, the weight is reduced, and it will not add too much burden to your bicycle when using it. 4. The surface adopts chrome plating technology, and the black surface has a delicate appearance. 5. Using high?quality metal, it has corrosion resistance, heat resistance, do not worry about long?term use of friction and heating, affecting its service life Specification: Item Type: Freewheel Cassette Material: Steel Product Color: As Pictures Shown Product Weight: Approx. 608g 21.4oz Gear Ratio: 1140T (11 13 15 18 21 24 28 32 36 40T) Speed: 10 speed Type: Super Fluid Drive positioning type . Package List: 1 x Flywheel2 x Sprocket1 x Flywheel Cover Note: After the installation is complete, check whether the flywheel is locked and whether it is aligned.Using high?strength steel, it has good corrosion resistance and heat resistance. Made by tempering and quenching process, it has higher strength, durability and strong wear resistance. With a hollow design, the weight is reduced, and it will not add too much burden to your bicycle when using it. The surface adopts chrome plating technology, and the black surface has a delicate appearance. Using high?quality metal, it has corrosion resistance, heat resistance, do not worry about long?term use of friction and heating, affecting its service life