Spitfire Formula Four 101a 54mm
Spitfire Formula Four 101a 52mm
The Spitfire Formula 4 Classics feature an umatched abrasion resistance for fewer flat spots, more controllable grip, and longer lasting speed no matter the terrain!
The Spitfire Formula 4 Classics are built to excel in specific scenarios like a narrow or wide wheel, but it’s appropriate for most situation with it’s signature Formula 4 design. Formula Four Urethane was developed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another!