Have just bought a new frame to make up a second 'training' bike and have purchased a FSA Gossamer crank with 175mm arms.
As the bike has never been fitted out before I have no idea how I choose the BB size. It is a 68mm sheel but how long does the shaft have to be ?
Any help gratefully received
As the bike has never been fitted out before I have no idea how I choose the BB size. It is a 68mm sheel but how long does the shaft have to be ?
Any help gratefully received