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城市&折叠 PIONEER-244A-5
CRANK   LENGTH曲柄长度152 / 170 / 175   MM 
CHAINRING齿片44T / 42T / 38T
CRANK   MATERIAL曲柄材质FORGED AL-6061-T6
CRANK FINISH曲柄涂层SAND BLACK
B.C.D螺丝分布直径104MM
CHAINLINE链条中心线45MM
CHAINRING   MATERIAL齿片材质ALLOY OR STEEL
CHAINRING   FINISH齿片涂层BLACK SAND ANO. OR   BLACK
CHAINGUARD链盖ALLOY, BLACK SAND   ANO.
Q-FACTOR /   I-FACTOR曲柄后下叉距离174 / 144MM
B.B. TAPER   SQUARE四方孔轴心116MM

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