Bassett's 15 x 8 19 lb D-Hole style beaded wheel is legal for use in IMCA, Wissota, USMTS, UMP dirt and asphalt markets. It features the same high quality CNC spun-form shell as the Inertia Advantage wheel, but at a more economical price. Big tire safety bead, locks tire in place at low air pressure. Spun-form rim shell equals higher yield strength steel and lowest runout. Lightest weight allowed by IMCA/WISSOTA. Valve stem located behind wheel center for protection.