2017 Polaris RZR XP 4 1000 EPS Titanium Metallic, Suspension FeaturesRace-Inspired Suspension For An Ultra-Smooth Ride: The race-inspired 3-link trailing arm rear suspension serves up an incredible 18-inches of rear wheel travel. Matched to an astounding 16-inches of front suspension travel with a dual coil-over spring design, the RZR XP® is set-up to conquer any terrain Mother Nature has to offer.