I've got an almost new set of heavy duty rear torsion springs for a Polaris IQ. I bought them halfway through the season last year and now have purchased a Holz coilover kit so I no longer need them. If you weigh more than 180 w/gear, these springs make a huge difference...no more bottoming out. I'm 250 w/gear and they worked great. Paid $150 and would sell for $100 shipped to you