- BB86 Press-fit Ultegra/105 bottom bracket
- Shimano, SM-BB72-41B, Press-fit, BB Shell: 86.5mm, Dia.: 41mm, Axle: 24mm, Steel, Grey, ISMBB7241B
- Compatible with all road Hollowtech II cranks
Attributes
| BB Bearing | Steel |
| BB Shell Type | BB86 |
| BB Shell Width | 86mm |
| Crank Spindle Diameter | 24mm |
| Cup Diameter | 41mm |
| Interface | Hollowtech II |
| Primary Color | Grey |
