MIDTOWN-253Y-TT-1
| CRANK LENGTH 曲柄长度 |
170MM |
| CHAINRING 齿片 |
53T / 48T / 44T / 42T |
| B.B. SETS B B 组 |
PW-BB68+ / PW-BB86 |
| CRANK MATERIAL 曲柄材质 |
FORGED AL-6061-T6 |
| CRANK FINISH 曲柄涂层 |
HP BLACK ANO. |
| B.C.D. 螺丝分布直径 |
130MM |
| CHAINLINE 链条中心线 |
45MM |
| CHAINRING MATERIAL 齿片材质 |
ALLOY |
| CHAINRING FINISH 齿片涂层 |
BLACK SAND ANO. |
| Q-FACTOR / I-FACTOR 曲柄后下叉距离 |
158 / 129MM |
| LD-390 |
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