产品规格
| 型号 | BB-7700 |
|---|---|
| 系列 | DURA-ACE TRACK 7710 系列 |
| Average weight | 173 g |
| Axle length / shell width_109.5mm_68mm_(BC1.37) | X |
| Axle length / shell width_109.5mm_70mm_(M36) | X |
| Axle Length / Shell Width | 109.5_68mm_ (BC1.37), 109.5_68mm_ (BC1.37) |
| Spindle_Hollow pipe | X |
| Spindle_Octalink | X |
| Spindle Type | Octalink-Hollow |