Spitfire 57mm Formula Four Pedro Turbo Radial 97DU Skateboard Wheels • Spitfire Pedro Delfino Pro skateboard wheels• 97DU hard skateboard wheels• Size 57mm• Width 35.5mm• Riding 22mm• Natural urethane• Radial shape• Set of Four• Formulated for a harder-faster ride• Unmatched flatspot resistance• Smooth anti-stick slide• More speed and control• 100% True performance urethane More from Spitfire at Slam City Skates More Skateboard Wheels Spitfire 57mm Formula Four Pedro Turbo Radial 97DU Skateboard Wheels