- Make sure this fits by entering your model number.
- Labyrinth seals for durability in wet conditions
- Frames with a BB86-Road (86.5mm width) BB shells with a 41mm-ID press-fit
- Shimano Reference Number: SM-BB71-
This fits your .
Shimano Ultegra level PressFit MTB bottom bracket with labyrinth seals to keep dirt out and plastic cups to keep bearings in place.