RPL-521
| CRANK LENGTH 曲柄长度 |
165MM / 170MM / 172.5MM / 175MM |
| CHAINRING 齿片 |
48-32T / 46-30T |
| 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 |
110 / 80MM |
| CHAINLINE 链条中心线 |
44MM |
| CHAINRING MATERIAL 齿片材质 |
ALLOY (48T, 46T) / STEEL (32T, 30T) |
| CHAINRING FINISH 齿片涂层 |
CNC DETAIL, BLACK SAND ANO. (48T, 46T) BLACK (32T, 30T) |
| Q-FACTOR / I-FACTOR 曲柄后下叉距离 |
161 / 132MM |
| B.B. TAPER SQUARE 四方孔轴心 |
116MM |
| LD-540 |
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