7 ply North American Maple pressed individually using epoxy making a strong, responsive deck with long lasting pop and consistent concave and kick. Deck Measures 8.25" x 31.8". Durable, high performance truck for all types of skateboarding. 356 T6 Aluminum hanger and baseplate, solid Chromoly steel axle, grade 8 kingpin, Indy cushions with cylinder bottom. Featuring superior turn and stability, better grind clearance, improved no hang-up yoke for grind tricks, and less wheel bite. They last longer and are stronger on impact than any other truck on the market. 55mm ride height. Standard 4-Hole Baseplate. 144s measure 8.25" from axle tip-to-tip. Recommended deck size 8.0" - 8.5". Includes 2 Trucks. Spitfire Formula Four Urethane Wheels. 99A Durometer, 52mm x 31.5mm. Conical Shape. A true performance conical shape. Hand cut for quick response and less weight. Spitfire Forumla 4 wheels feature unmatched abrasion resistance which equals fewer flat spots and smooth anti-stick slide for more controllable grip and lasting speed.