GOEXM 10 Speed Cassette 11-50T MTB Mountain Bike Freewheel Fits Shimano SRAM

10 Speed Cassette 11-50T MTB Mountain Bike Freewheel Bicycle Flywheel Cassette 2018 NEW 11-50T 10 Speed MTB mountain Bike Freewheel bicycle flywheel Cassette [color] Silver+BLACK [teeth number] 10- speed 11-50T [speed] 10 speed, [introduction] genuine Taiwan native day chikuan gear ratio AL7075 Largest Sprocker maximum mountain flywheel disc Aluminum Alloy material support Aluminum Alloy anode red, locking cap and gasket for Aluminum Alloy anode red, big gear flywheel, for single disc tooth disc climbing more easily We must admit that we are not perfect Please contact us anytime if you have any question ,we promise that we will try our best to slove your problem.