GOLDIX MTB Cassette | 8–12 Speed 40T–52T Freewheel Sprocket for Shimano/SRAM

(Generally, the flywheel with the smallest tooth of 11T is Hg tower base. For example: your old bicycle cassette is 10 layers, then you need to buy 10 speed bicycle flywheel. Model Number :GOLDIX. GOLDIX Black Bicycle Freewheel Mountain Bike Cassette 8/9/10/11/12 Speed SHIMANO HG Structure Specification for SHIMANO/SRAM. ).

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