GOLDIX Ultralight MTB Cassette Freewheel k7 9/10/11/12/13 Speed HG Structure Sprocket Carbon Steel Material for Mountain Bike

Brand: GOLDIXColor: All Black color*Process: Phosphating treatment (wear resistance, corrosion resistance)Structure: for SHIMANO HG (SHIMANO HyperGlide)Material: Carbon steel materialType: suitable for mountain bikeModels:We have the following models:9Speed : 11T-40T / 11T-42T10Speed : 11T-40T / 11T-42T / 11T-46T / 11T-48T  /11T-50T11Speed: 11T-40T / 11T-42T / 11T-46T / 11T-48T  / 11T-50T / 11T-52T12Speed: 11T-39T /11T-40T / 11T-42T / 11T-46T / 11T-48T /11T-50T / 11T-52T13Speed: 11T-46T / 11T-48T / 11T-50T / 11T-52TSpecial reminder:This bicycle freewheel serves the SHIMANO HG structure and can only be used for the HG bicycle hub body, not for SRAM XD or MS (Micro spline)If you used for SRAM shifting system, it can only be used for HG structure bicycle hub body, not for XD structure bicycle hub body !!!