FC-M645
FC-M645
FC-M645
产品规格
| 型号 |
FC-M645 |
| 系列 |
ZEE M640 系列 |
| Color |
Series color, - |
| Average weight |
858 g (38T) 847 g (36T) 837 g (34T) |
| 2-piece crank construction |
X |
| Chain line (mm) |
57.9 |
| Chain ring combination |
38, 36, 34T (FC-M640/M645 chainring) |
| Compatible BB type_Outboard |
X |
| Compatible chain |
HG-X 10 速 |
| Crank fixing bolt included |
X |
| Crank arm length (mm)_165.0 |
X |
| Crank arm length (mm)_170.0 |
X |
| Crank arm length (mm)_175.0 |
X |
| Gear arms |
4 臂 |
| Optional chain guard_Without chain / bash guard |
X |
| P.C.D. (mm) |
104 |
| Rear speeds |
10 |
| Recommended BB_Pressfit |
SM-BB71-41C |
| Recommended BB_Threaded (E-type) |
SM-BB52 |
| Recommended BB_Threaded (normal) |
SM-BB52 |
| Threaded BB shell width_83mm |
X |
| Crank arm fixing bolt_With |
X |
| Q-factor (mm) |
189.7 |
