CHAIN WHEEL

ZP-A82-A2
CRANK 曲柄 A82-170mm
(Alloy Forged 6061-T6)
CHAIN RING 链轮 34T*50T(steel)
SPIDER 爪 BCD 104/64mm
CHAINLINE 链线 43.5mm
COMPATIBIL ITY 变速兼容 2*9S
B.B.T 中轴 Chrome molybdenum steel

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