Originally Posted by
ls0725
i have been checking on Shimano bottom bracket types and noted that there is a Hollowtech and an Octalink. Are they the same thing? What is the difference between the 2 if ever not the same?
Do they use the same tools to remove/install?
Thanks replies to the newbie question.
Octalink is like a square taper shimano cart bb except the square taper is a splined interface. Hollowtech is an external bottom bracket design. Cranks and bbs are not interchangeable between the two.