Enhance the safety and stability of your Trailmaster go-kart with these essential R-washers designed specifically for rollcage bars. This pack includes 4 high-quality steel washers featuring a curved design that perfectly follows the contour of round tubes. The specialized radius shape helps prevent tube crushing when tightening bolts, ensuring proper installation and structural integrity. Each washer measures 0.78 inches in width, 0.48 inches in height, and comes with a durable plated finish for lasting performance. These washers are precision-engineered to fit Trailmaster and Hammerhead go-kart frames, making them the ideal replacement parts for maintaining your vehicle's safety equipment. The thoughtfully designed radius profile distributes pressure evenly across the tube surface, providing secure mounting points for roll cage components. Simple to install and built to last, these R-washers are an essential component for proper roll cage assembly and maintenance.