2000 Polaris Indy 500 / 600 snowmobile service manual, Page 268Get this manual
SUSPENSION Front Rear Scissor Stop (FRSS)XTRA 10 Style The purpose of the front rear scissor stop (FRSS) is to control the bump attitude of the rear suspensionAs the front torque arm (FTA) hits the bump, it forces the rear scissor to collapse predetermined amount, depending on the FRSS block positionThis accomplishes two important things, it allows lighter spring rate on the FTA because it can borrow spring rate from the rear torsion springs; and it prepares the rear portion of the suspension for the bump, reducing secondary kick backThe FRSS is made of resilient material allowing smooth action and preventing any suspension component damageThis unique feature is applied to the XTRAt 10 rear suspensionPatents are pendingFront Torque Arm (FTA) Rear Scissor FRSS RRSS