If I know the free sag with the original and the free sag in my situation I know how much more travel I got. Indeed a factor 3 (distance shock mount to centre / length rear bridge to centre = 630/230) is between the shock stroke and wheel travel. I called the guy at WP again, they changed the rebound disk to 6mm (and they could go to zero they told), so 6 more mm to go but then I need a longer spring. Anyone a 140-265 laying around? Edit, i think i am wrong with the term free sag. I mean the distance of the rear axl to a fixed point somewhere on the rear of the bike.