- Make sure this fits by entering your model number.
- The BBT-18 has 8 notches with an outside diameter of nominally 43.4mm.
- The inside-to-inside width is approximately 38mm
- Each notch is approximately 3.9mm wide.
- The hole in the center of the casting is 22.5mm, and will not fit over the 30mm spindles.
This fits your .
When its time to replace your Shimano Octalink bottom bracket, reach for the Park Tool BBT-18 Bottom Bracket Tool to make the job a breeze. It uses its eight pins to lock into place, each with a width of 3. 9mm. The internal hole in the tool is 22. 5mm, so it will not work on bottom brackets with a 30mm shell. It’s ideal for ISIS Drive and Shimano Octalink right cup bottom brackets with external notches.