SUPERATV POLARIS RZR PRO XP SIDEWINDER A-ARMS—1.5" FORWARD OFFSETFree shipping in the lower 48 states. Description: A Arms That RockPeople are going to look at your UTVgive them a reason to stare with SuperATVs Polaris RZR PRO XP 1. 5 Foward Offset Sidewinder A arms. They look like nothing else on the trail. Youll also get an extra 1. 5 ground clearance and a 1. 5 forward offset, making them the ultimate fusion of form and function. Want bigger tires? Our A arms let you fit up to 34 tires without breaking a sweat.