产品规格
| 型号 | FC-M985 |
|---|---|
| 系列 | SHIMANO XTR M980 系列 |
| Color | Series color |
| Average weight | 647.7g (44-30T)631.1g (42-30T)623.6g (40-28T) |
| AllBrandCommon BikeType | MTB |
|---|---|
| Arm adapter | ✔ |
| Chain line (mm) | 48.8 |
| Chain ring combination | 44 |
| Compatible BB type_Outboard | ✔ |
| 兼容的中轴类型 | Square |
| Compatible chain | HG-X 10-speed |
| 曲柄臂长度 | 170mm, 175mm |
| Crank arm length (mm)_170.0 | ✔ |
| Crank arm length (mm)_172.5 | ✔ |
| Crank arm length (mm)_175.0 | ✔ |
| Crank arm length (mm)_180.0 | ✔ |
| Gear arms | 4 |
| Optional chain guard_Without chain / bash guard | ✔ |
| 可选护链盘 | With chain guardWithout chain / bash guard |
| P.C.D. (mm) | 88 |
| Rear speeds | 10 |
| Recommended BB_Pressfit | SM-BB94-41A |
| Recommended BB_Threaded (E-type) | SM-BB93 |
| Recommended BB_Threaded (normal) | SM-BB93 |
| Threaded BB shell width_68mm | ✔ |
| Threaded BB shell width_73mm | ✔ |
| 螺纹五通宽度 | 68mm, 73mm |
| Crank arm fixing bolt_With | ✔ |
| 包含曲柄臂固定螺钉 | Yes |
| Q-factor (mm) | 162 |
