Martin Wheel AMRM-DM412B-4I 4.80 x 12 Trailer Tire & Rim Assembly 480 Series 4 Lug Quality high speed replacement trailer tire and rim assembly. 4.80 x 12" B Load Range 4 Lug Solid White Rim For all your Trailer Parts and Boat Accessories click on "Available from these sellers" then click on AccessoriZ My Ride