Originally Posted by WheresWaldo

As they should, so just as a preliminary fit the Foil will be a <1 cm steerer tube spacer taller than the Six13, but I believe you said that the Six13 was at the top of the steerer anyway, so the Foil is a bit taller and would work, IIRC. Six mm shorter reach would mean going from a 100 mm stem to a 105 - 110 mm. That should put you at about the same handlebar position you are now. Again this is with all other things being equal (crank length, handlebar reach and drop, same pedals, same saddle, you get the picture).