The 13" Bassett Legends and Mini-stock series wheels use the Inertia Advantage five-spoke center design and a high quality spun-form shell. The brake cooling holes feature almost 9 square inches more area, while the weight placement in the center helps the wheel rotate faster. Also, strict quality control means runout is much lower than other Legends and Mini-stock wheels on the market. Features: Light weight and low runout (under . 030") thanks to spun-form wheel shells produced in-house Reinforced torque ring and forged coining on center increases durability. The 5/8" valve stem hole is located behind the center to avoid clipping Larger brake cooling holes reduce brake temperature and prevent fading during long feature races NOTE: The 13x6, 13x7 and 13x8 wheels feature tire safety bead bumps to retain the tire when using low air pressure on dirt tracks.Pit Stop USA offers Bassett Legends, Mini-Stock Spun Wheel - 13" x 7" - 4 x 4.25" - Black - 3" Back Spacing - 16.25 lbs. 37SP3 at low everyday prices. Be sure to check out all of our products from Bassett Racing Wheels including Bassett Mini-Stock/Legends 13" x 7" - 4 x 4.25" .