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PRODUCTS
ROAD公路 AE-221P
CRANK   LENGTH曲柄长度165 / 170 /   175MM
CHAINRING齿片50-34T
CRANK   MATERIAL曲柄材质FORGED AL-6061-T6
CRANK FINISH曲柄涂层SAND BLACK
COMPATIBILITY变速兼容8S / 7S
CHAINLINE链条中心线43.5MM
CHAINRING   MATERIAL齿片材质STEEL
CHAINRING   FINISH齿片涂层BLACK
CHAINGUARD链盖PLASTIC BLACK
Q-FACTOR /   I-FACTOR曲柄后下叉距离171 / 143MM
B.B. TAPER   SQUARE四方孔轴心119MM

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