大发快三玩法中奖规则

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                关闭
                领先技术

                PowerCore

                A massively oversized bottom-bracket/chainstay area features a fully integrated, 86-millimeter wide bottom-bracket design (92-millimeterwide for off-road bikes). Asymmetric chainstays provide additional stiffness on the driveside and stability on the non-driveside.

                宽大的五通与后下叉区域,可容纳86厘米宽的五通(登山车为92厘米宽),而不对称的后下叉,提升◥驱动边的刚性,以及非驱动边的稳定性。