Sag is done by your preload adjusters , by holding the bike with out been on stands or someone sitting on it , bounce it a couple of time to get the bike to sit at its unloaded sag height measure front & back suspension at a given point , then write those mesurements down then sit on the bike with someone holding it bounce it up a down again to set the sag height with you on it now & get another person to measure the same given points as before front & back , then work out whether you have to add preload { wind down } or take it off {wind out } There should be approx 35mm rear difference for the back figures & aprrox 40mm for the front , these can vary abit to peronal feel plus how you like the rebound & compression damping to activate .
