It is equipped with racing carbon frames and more passing ability wheel of 27.5”,more suitable to figure of Asians because of modified frame sizes. The material of its frame is T700 from Japan and reinforced with high modulus when producing the frames ,as a result the frame is in perfect balance between in weight and rigidity. The frame of model of M only weighs 920g.The thick down tube and bottom bracket provide high side rigidity and direct force transport. Besides, the thin seat stay will red...