Polaris RZR Pro R 2 Seat chassis clamps (8). Complete set of PRO R chassis clamps or "bungs". Machined from billet to very close tolerances. Exact fit for stock and includes interior slots for wire routing on A-pillar clamps. Why pay more for quality RZR chassis clamps? - A-Pillar Bungs are machined to fit tubing 1.75" OD with .120" wall thickness - B-Pillar Bungs are machined to fit tubing 1.75" OD with .120" wall thickness (.095" wall thickness will work) - C-Pillar Bungs are machined to fit tubing 1.75" OD with .095" wall thickness (.120" wall thickness will work)