Polaris RZR-900 XP-1000 Series Nerf Bars. Factory UTV Nerf Bars for the Polaris RZR 900 / XP 1000 Series UTV s. Constructed with strong 1.25in Steel Tubing, these nerfs bolt to stock locations on the vehicle and offer excellent protection to the side of your XP1K. Available in Black, Orange or Red tough and beautiful powder-coat finish. These Nerf Bars are an option to our UHMW sliders. They protect UTV s against tree damage and also are a great help in an open wheel contact situation. Another great mod from Factory UTV, your number 1 source for quality UTV Accessories.