Tear up the park at max speed with a set of Spitfire Formula Four Conical 54mm 99a skateboard wheels. A 54mm sizing and signature conical shape mean these wheels carry speed excellently, while the 99a durometer rating adds an ideal middle-ground of grip for all-types of riding styles.
Formula Four Conical 54mm 99a Skateboard Wheels by Spitfire. Team model Spitfire wheels. Spitfire's latest Formula Four urethane design. Spitfire's Conical wheel shape for a true bearing seat and speed over all-terrain. Unmatched flat spot resistance. Includes 4 urethane wheels. 54mm sizing, 99a durometer hardness rating. 100% urethane. Made in the USA.