Polaris Fabrication by Subzero Metal Fab At Subzero Metal Fab, we build high-performance upgrades for Polaris off-road machines that are as tough as the terrain you ride. From precision-engineered roll cages and heavy-duty bumpers to light bar mounts, bash guards, and custom suspension systems, every component is designed for maximum strength, safety, and style. Our parts are built in-house using premium materials and proven fabrication techniques, ensuring they can handle the harshest trails, dunes, and backcountry adventures.