Durable 30mm Rear Bumper Hardware Kit for Secure Kart MountingImagine hitting the track with absolute confidence in your kart's rear setupno wobbles, no surprises, just pure speed. The BWK5930 Rear Bumper Hardware Kit, tailored for 30mm frames, delivers exactly that by providing a robust mounting solution for sprint CIK rear bumpers. Compatible with BWK5905 Rear Bumper Mount Kit or equivalent systems, ensuring seamless integration into your existing bodywork. Includes precision engineered inserts specifically