Tiagra to 105/ultegra crankset change question

Whiteeddymurphy

Hello all I am about to get a madone 3.1 which comes with 105 mainly but tiagra crank. It states it has press fit bb. So do I just buy a hollow tech crank or will that not fit? Any thoughts so I can look around for one ahead of bike arrival

clogg

If it has a tiagra crank fitted already then it will have a shimano press-fit bottom bracket bb71 or bb/91 see

http://www.chainreactioncycles.com/ie/e ... -prod61803
or
http://www.chainreactioncycles.com/ie/e ... -prod44226

Any hollotech crank will fit, 105/ultegra or even dura ace . You should not need to change bottom bracket at all.

Whiteeddymurphy

Thanks for that