I just picked up a 2017 DL650. The PO had Andreani cartridges installed. The springs are .88 on the compression side and .93 on the rebound side. The problem is I can only get 25mm of sag with the preload adjusters all the way out. He spec'd a rider weight of 200lbs which is the same as me. The carts came with the springs. The Racetech spring calculator specs .95 springs.