Shimano BB-UN300-E Bottom Bracket – English 68 x 122.5mm Spindle Square Taper JIS For E-Type Front Derailleur. Shimano BB-UN300 Square Spindle Bottom Brackets
- TECH SPECS
| Bottom Bracket Shell I.D. | 1.37 |
| BB/Frame Interface | English |
| BB Shell Width (mm) | 68 |
| Spindle Interface Type | Square Taper JIS |
| Spindle Length | 122.5 |
| Defined Color | Black |
