The Polaris RZR XP1000 4 seat XP4 MTS suspension kit features front a-arms that are +3.5" wider per side and extended heavy duty tie rods. The rear set up comes with our heavy duty hi clearance trailing arms that are 3.5" wider per side as well. the overall wheel base of the vehicle is kept at standard length". The kit also comes with a rear radius rod kit that features an LSR radius rod plate for added strength. This kit will achieve about 20" of travel superior performance and handling.