曲柄组 (3x8/7速)
FC-A073
FC-A073
曲柄组 (3x8/7速)
-
FEATURE
- DUAL SIS（双SIS）
- SG-X 链轮片
- 可与SHIMANO公路8/7速系统互换
- 165mm, 170mm曲柄臂长度可选
- BB-UN26
- 50-39-30T, 链盖
相关技术
产品规格
| 型号 |
FC-A073 |
| 系列 |
SHIMANO TOURNEY A070 Series |
| Color |
Series color, - |
| Threaded BB shell width_70mm |
X |
| Axle length of BB-UN/ ES (mm)_Threaded (normal) |
LL113 |
| Chain line (mm) |
45 |
| Chain ring combination |
50-39-30T |
| Compatible BB type_Square |
X |
| Compatible chain |
HG |
| Crank arm length (mm)_165.0 |
X |
| Crank arm length (mm)_170.0 |
X |
| Gear arms |
5 |
| Optional chain guard_With bash guard |
X |
| Optional chain guard_Without chain / bash guard |
X |
| P.C.D. (mm) |
Riveted |
| Rear speeds |
7/8 |
| Recommended BB_Threaded (normal) |
BB-UN26 |
| Threaded BB shell width_68mm |
X |
| Crank arm fixing bolt_Without |
X |
| Q-factor (mm) |
171.5 |
