OVERVIEW Spitfire Bighead Skateboard Wheels are a trusty 99a wheel for park and street riding. Features include a treaded surface and medium profile, and they are backed by Spitfire's 100% guarantee against defects. Sizes available (mm): 52, 53, 54, 57. Sold as a set of 4. Surface Treaded Quantity Set of 4 Wheels Wheel Profile Medium Durometer 99a FEATURES SURFACE Treaded - Treaded wheels come with tiny grooves on the riding surface that wear away quickly. WHEEL PROFILE Medium - Your classic wheel shape, versatile all-around wheel for street/park skating. DUROMETER 99a - Offers more grip than harder wheels and more slide than softer wheels. Great for slick surfaces when you want more control. SPECS SIZE 52MM 53MM 54MM 57MM DIAMETER (MM): 52.0 53.0 54.0 57.0 WIDTH (MM): 33.0 33.5 34.5 35.0 RIDING SURFACE (MM): 16.5 17.0 17.5 18.0 SUGGESTED RISER SIZE (IN): N/A N/A N/A 1/8
