RPF-421N
| CRANK LENGTH 曲柄长度 |
165MM / 170MM / 172.5MM / 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 |
| LD-707 |
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