Like this site? Help us to make it better.

Hollowtech 2 bottom bracket install

Hi All


My bottom bracket is not letting the cranks spin as freely as it should (without the chain on) so  I think it is time to replace it. As it happens I have one but I have a couple of questions with the install.

There is a sort of dust cap/O rings from memory on the crank side that goes against the bottom bracket bearings. The new BB didnt come with this and I would like to put a new one on. Does anyone know what the part number/name of this is or where I can get one? Also do I really need it? All the online install videos I have seen never seem to have one.

Also last time I installed a BB I tightened it with a wrench but didnt check the torque. Any cheap tools to make sure I am getting the requred torque when tightening it up?



If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.

Latest Comments