Brand: ZRACE Model: ALPHA HG / XD / MS HG freehub 10s 1-2 teeth Ultra high strength steel, hardness 680HV (M8000 hardness 580HV) 3-9 teeth High-strength steel, hardness 680HV (M8000 hardness 500HV) 10 teeth 7075 aluminum alloy, hardness 170HV 10s 11-46T：11-13-15-18-21-24-28-34-40-46T 477g 10s 11-50T：11-13-15-18-21-24-30-36-42-50T 508g 11s 1-2 teeth Ultra high strength steel, hardness 680HV (M8000 hardness 580HV) 3-10 teeth High-strength steel, hardness 680HV (M8000 hardness 500HV) 11 teeth 7075 aluminum alloy, hardness 170HV 11s 11-46T：11-13-15-18-21-23-26-30-34-40-46T 507g 11s 11-50T：11-13-15-18-21-24-28-32-36-42-50T 561g 11s 11-52T：11-13-15-19-23-26-30-34-40-46-52T 660g 12s black 1-2 teeth Ultra high strength steel, hardness 680HV (M8000 hardness 580HV) 3-11 teeth High-strength steel, hardness 680HV (M8000 hardness 500HV) 12 teeth 7075 aluminum alloy, hardness 170HV 12s 11-50T black：11-13-15-17-19-21-24-28-32-36-42-50T 587g 12s 11-52T black：11-13-15-18-21-23-26-30-34-40-46-52T 701g 12s Gold 1-2 teeth Ultra high strength steel, hardness 680HV (M8000 hardness 580HV) 3-10 teeth High-strength steel, hardness 680HV (M8000 hardness 500HV) 11-12 teeth 7075 aluminum alloy, hardness 170HV 12s 11-50T gold：11-13-15-17-19-21-24-28-32-36-42-50T 569g 12s 11-52T gold：11-13-15-18-21-23-26-30-34-40-46-52T 673g XD freehub： 1-2 teeth Ultra high strength steel, hardness 680HV (M8000 hardness 580HV) 3-11 teeth High-strength steel, hardness 680HV (M8000 hardness 500HV) 12 teeth 7075 aluminum alloy, hardness 170HV Only compatible with XD freehub 12s 9-50T：9-11-13-15-18-21-24-28-32-38-42-50T 542g MS freehub： 1-2 teeth Ultra high strength steel, hardness 680HV (M8000 hardness 580HV) 3-11 teeth High-strength steel, hardness 680HV (M8000 hardness 500HV) 12 teeth 7075 aluminum alloy, hardness 170HV Only compatible with Micro Spline 12s 10-50T：10-13-14-16-18-21-24-28-32-36-42-50T 567g

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