Spitfire Formula Four Radial Full 58mm 93a
Spitfire's Radial Full shape offers a smooth, predictable ride with its rounded edge, cast in Formula Four, the urethane formula Spitfire introduced in 2013 for flatspot resistance and consistent grip — a tradition that traces back to Jim Thiebaud founding the brand in San Francisco in 1987. This set comes at 58mm, 93a durometer, for riders who want a softer, grippier wheel underfoot.




