DE Racing Speedway SC Wheels Mud Plugs (4)DE Racing Speedway SC Wheels Mud Plugs are a clever solution for the problem of mud packing into the outer side of a wheel. These mud plug disks simply snap in to our Speedway series of wheel to complete a package for total oval racing dominance. These disks not only help with keeping heavy mud out, but their flat surface offers a billboard to display your own personal styling flair with some optional cut or printed vinyl. When the race is over and