Originally Posted by maranen

I can’t explain without a picture (This is not the ti-version). The clearance in A between the wheel and the frame tube on the left side was almost 1 cm greater compared to the clearance on the right side. But in B the clearance differences were vice versa – left side clearance was 1 cm less. This asymmetry is not present with Merc.

I did ask the question some months ago in this forum – “Are the Merc and Brompton frame parts identical?” The answer was “Yes”.