Polaris RZR XP 900 4" Portal Gear Lift Portal Gear Reduction:15% Each arm is made with

Each arm is made with a precise blend of hand-welded materials and tubing that’s 25% larger than stock

Ships regular ground delivery to your door

the all-new MX-SI gives motocross riders and racers an edge with superior traction in a wide range of conditions

Will work with factory doors

MudBusters Max Coverage Front and Rear Fender Flares:

Polaris RZR XP 900 4" Portal Gear Lift Portal Gear Reduction:15% Each arm is made withAvailable with billet or cast aluminum housing Cool, quiet, precision ground gears made from 9310 alloy billet steel Increases width by 4 in. per side (8 in. total) 1. 5 in. diameter 4340 hardened steel drive shaft No leak bearings and seals Universal hub fits all major bolt patterns Comes complete with all hardware, backing plates, brakes lines and instructions Wheel Requirements: 14 or larger wheel required 14 & 15 wheels cannot exceed 4 1 2