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PRODUCTS
ROAD公路 RPF-421-N
CRANK   LENGTH曲柄长度165 / 170 /   172.5 / 175MM
CHAINRING齿片53-39T
CRANK   MATERIAL曲柄材质FORGED AL-6061-T6
CRANK FINISH曲柄涂层SAND BLACK
COMPATIBILITY变速兼容9S / 8S
B.C.D螺丝分布直径130MM
CHAINLINE链条中心线45MM
CHAINRING   MATERIAL齿片材质STEEL
CHAINRING   FINISH齿片涂层BLACK
Q-FACTOR /   I-FACTOR曲柄后下叉距离158.5 / 129.5MM
B.B. TAPER   SQUARE四方孔轴心110.5MM

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