ZRACE ALPHA EX 11-Speed ​​road bike HG Cassette for Road Folding Bikes Extremely lightweight CNC Fully Hollow and Super light

After 12 months of optimization and testing, we finally completed this HG-spec ultra-lightweight cassette. We optimized the Cassette bracket to take into account both lightness and strength, and innovatively added a freehub sleeve to the HG flywheel to maximize the stability of the Cassette. We used mechanical and electronic groupsets from Shimano, SRAM, LTWOO, and SENSAH for 4 months of testing to ensure that it can perfectly match the groupsets of these brands. The largest 3 pieces of the Cassette are made of 7075 aluminum alloy, and the others are made of 35# molybdenum steel, taking into account both strength and lightness. Choosing this Cassette can bring you a better riding experience.Brand: ZRACEModel: ALPHA EXMaterial: molybdenum steel + 7075 aluminum alloySpeed: 11sFreehub: HGColor: Silver + Purple / Silver + Pink / Silver + Green / Black + GoldSize: 11-Speed 11-28T / 11-30T / 11-32T / 11-34T / 11-36TWeight: 11s 11-28T 11-12-13-14-15-17-19-21-23-25-28T 126g11s 11-30T 11-12-13-14-15-17-19-21-24-27-30T 134g 11s 11-32T 11-12-13-14-15-17-19-21-24-28-32T 136g 11s 11-34T 11-12-13-15-17-19-21-24-27-30-34T 159g 11s 11-36T 11-12-13-15-17-19-21-24-28-32-36T 160g