Polaris RZR XP Turbo Billet Aluminum Radius ArmsSolid Billet Aluminum Radius Arms Get superior strength and suspension that turns heads with SuperATVs Billet Aluminum Radius Arms for the Polaris RZR XP Turbo. Theyre made with 32mm diameter solid 7075 billet aluminum bar. The hex bar design gives them added strength and makes them easily adjustable while installed on the UTV. All that strength is backed by a Lifetime Warranty. Just hit the gas and ride weve got your back. Heavy Duty Heims and