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GRAVEL砾石 RPL-FD16S-F-TT
CRANK   LENGTH曲柄长度165 / 170 /   172.5 / 175MM 
CHAINRING齿片42T / 40T
BB SETSBB 组PW-BB68+ / PW-BB86
CRANK   MATERIAL曲柄材质FORGED AL-6061-T6
CRANK FINISH曲柄涂层BLACK SAND ANO.
COMPATIBILITY变速兼容11S / 10S / 9S
B.C.D螺丝分布直径110MM
CHAINLINE链条中心线51MM 
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169.8 / 140.8MM

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