Cycling UK Forum

Hi,

I wonder if anyone can help me please. I have an old Felt F55x cyclo-cross bike which oddly has Shimano Ultegra throughout except for the crank set.
A few years ago I seem to remember someone saying that it's possible to get an adapter to fit a Shimano 10 speed crankset to it. Now I don't know if that was an adapter in the frame to fit a Shimano bottom bracket or a BB30 bottom bracket that's compatible with Ultegra cranks.

So my question is, do you know if this is possible and if so what items do I need to purchase please?

thank you