Through Authenticate 
Material：Chrome Steel
Tooth：16T
Weight：23g
A larger cassette with 16T & 40T/42T sprockets adopted to upgrade 10-speed system, instead of 15T and 17T, 16T is smoother when shifting. 40T/42T enclosed after 11T-36T cassette is also compatible with Shimano 10 spd drivetrains system. Full CNC 7075 sprockets and it is easy to install, great durability, and the best ratio in teeth numbers indicated from each sprocket.
Suggest suit for 10-Speed system：
11-13-16-19-21-23-26-30-34-40
11-13-16-19-21-24-28-32-36-42
For more details, please direct inquiries to us. Thank you!
Weight：23g
A larger cassette with 16T & 40T/42T sprockets adopted to upgrade 10-speed system, instead of 15T and 17T, 16T is smoother when shifting. 40T/42T enclosed after 11T-36T cassette is also compatible with Shimano 10 spd drivetrains system. Full CNC 7075 sprockets and it is easy to install, great durability, and the best ratio in teeth numbers indicated from each sprocket.
Suggest suit for 10-Speed system：
11-13-16-19-21-23-26-30-34-40
11-13-16-19-21-24-28-32-36-42
For more details, please direct inquiries to us. Thank you!
