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GRAVEL砾石 RPP-FD16A-TT / RPP-FD16S-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48.7MM 
CHAINRING   MATERIAL齿片材质ALLOY / STEEL
CHAINRING   FINISH齿片涂层BLACK SAND ANO.,   BLACK
Q-FACTOR /   I-FACTOR曲柄后下叉距离 169.8 /   140.8MM

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