Spitfire Formula Four Conical Full 101DU Wheels in Natural and 54mm. With a 101 duro hardness for improved grip without compromising on speed, these flatspot-resistant Spitfire wheels are styled with a wider 22mm riding surface for an unmatched sense of control well-suited to any given terrain. At a height of 54mm with an overall width of 34mm, these 100% premium-grade urethane conical wheels are signed off in a natural shade with black, red and gold checkerboard ‘Spitfire Formula-Four’ branding printed across each exterior-facing sidewall.

Backed by a worldwide team, an iconic ‘Spitfire head’ logo and an ever-expanding global reputation for exemplary quality, Spitfire is a pioneering hardware brand dedicated to producing and supplying some of the most reliable wheels, bearings, grip and tools the industry has ever seen.