Static sag-RZR (ready to run) mesure ground clerence, in front and back
Race sage-inkl driver and passanger mesure like static sag.
In a Motocross bike or streetbike, you will have numbers on thats good and this you chould try to reatch, ex in my motocross bike, KTM rekomended 27-31mm diffrent betwin static and race sag, but it was not possible for me, with on only changes the pressure in the springs so I had to buy softer springs and after this me and my bike (together) made better laplimes.....Used the hole suspensions