Thanks Marcus. That explains why measuring the fork sag isn't very popular. I know the only way to measure it correctly is by making an average of the higher and lower reading using the seal stiction. I thought it would give me an idea of the ideal geometry to start with. I got the springs for my weight and, the thing is I would like to do some more testing with different spring rates while keeping the bike geometry constant throughout. I would be using either spring spacers (for softer springs) or sliding the fork up the clamp (for stiffer springs) to keep the same geometry. That is why I would really like to have a fork sag number. It would be great if it would be in a format like the rear; example. 45mm + or - 5mm. :confused: