BOLANY 8-9-10-11-12 Speed Cassette 11-32T 11-36T 11-40T 11-42T 11-46T 11-50T 11-52T Wide Ratio MTB Bicycle Part Freewheel Sprocket with Rear Derailleur Extension (11 speed 11-50T)

Product description
[introduction] genuine BOLANY wide tooth gear mountain flywheel, big tooth flywheel, for single tooth disc climbing more easily,!
Tooth ratio and weight：
8 speed 11-32T: 11-13-15-18-21-24-28-32T weight：297g
8 speed 11-36T: 11-13-15-18-21-24-30-36T weight：381g
8 speed 11-40T: 11-13-16-20-24-28-34-40T weight：414g
8 speed 11-42T: 11-13-16-20-24-30-36-42T weight：441g
9 speed 11-32T: 11-13-15-17-19-21-24-28-32T weight：318g
9 speed 11-36T :11-13-15-18-21-24-28-32-36T weight：399g
9 speed 11-40T: 11-13-16-20-24-28-32-36-40T weight：517g
9 speed 11-42T :11-13-16-20-24-28-32-36-42T weight：529g
9 speed 11-46T: 11-13-16-20-24-28-34-40-46T weight：480g
9 speed 11-50T: 11-13-16-20-24-30-36-42-50T weight：489g
10 speed 11-36T: 11-13-15-17-19-21-24-28-32-36T weight：355g
10 speed 11-40T :11-13-15-18-21-24-28-32-36-40T weight：419g
10 speed 11-42T: 11-13-15-18-21-24-28-32-36-42T weight：515g
10 speed 11-46T: 11-13-15-18-21-24-28-34-40-46T weight： 549g
10 speed 11-50T :11-13-16-20-24-28-32-36-42-50T weight： 589g
11 speed 11-40T :11-13-15-17-19-21-24-27-31-35-40T weight：530g
11 speed 11-42T :11-13-15-17-19-21-24-28-32-37-42T weight：542g
11 speed 11-46T: 11-13-15-17-19-21-24-28-32-37-46T weight：559g
11 speed 11-50T: 11-13-15-18-21-24-28-32-36-42-50T weight：603g
11 speed 11-52T :11-13-15-18-21-24-28-34-40-46-52T weight：700g
12 speed 12-50T :11-13-15-17-19-21-24-28-32-38-44-50T weight： 614g
12 speed 12-52T: 11-13-15-18-21-24-28-32-36-40-46-52T weight：710g
Package Contents:
1* freewheel+1*Bicycle black rear rack transmission hook extender Note: 11-40T and below gear ratio does not include black rear transmission hook extender.
Have a nice shopping day.