it does recalculate the bottom bracket height. right in the middle it says "bb height" which is the height difference between the hub axles and the bottom bracket.srands":2g1gy55k said:(A) GeoCalc: SIMPLE and RELEVANT, compare current setup (L/H) with new LONGER SUSPENSION FORK setup on (R/H). However this does NOT auto calc that a longer fork will raise the bottom bracket higher from the ground, hence without this "correct b/b height length", then the quoted angles will be incorrect. With it, looks good.