Originally posted by ROADRACER
Strick thanks for the reply. As I understand it race sag is more important, so when I set 100mm race sag I have to back the collar all the way out and the static comes in around 75mm. If I do the static at 35mm then the race is 108 and if I preload the spring more the it only seems to effect the static numbers.
There's no way to put this nicely, but you are doing the measurement wrong if you get those numbers.
Recap:
A) Put bike on stand, rear wheel completely off the ground. Measure distance from axle to a fixed point in the fender (result: A).
B) Take bike off stand, push suspension down, let come up but not bounce. Take the same measure(result: B).
C) Stand on pegs while holding yourself up with hand to a wall or fence(hands off the bars, all weight on pegs), have buddy take the same measure (you can have your buddy take also A&B so they will be consistent).
Static sag: A-B
Race sag: A-C (You might be using B-C right now, or just mistyped the numbers above?)
Increasing preload should DEFINITELY decrease race sag as well as static.
PS. I only say to take race sag while standing on the pegs so you get consistent results. That way you have your weight always in the same place. Moving only a little on the saddle can change the race sag numbers by several centimeters.