Polaris, 500 XC SP All Snowmobiles >>> Snowmobiles by Polaris More details and ordering info. The variable exhaust equipped Indy 500 XC SP also delivers class-leading performance. It leads the pack with our award winning EDGE? chassis with 10.3' of front travel supported by our new race proven aluminum bodied gas shocks and our Controlled Roll Center (CRC) design to keep more of the skis kissing the ground while turning. The fully-coupled rear suspension, our exclusive Position Sensitive rear track shock and Dual Angle Tunnel (DAT) combine to offer an unsurpassed ride. User input on 500 XC SP by Polaris: Be the first to submit input on this product Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines