Spitfire Formula Four Classic 99a Skateboard Wheels Size in millimeters:55mm a Zoom Air unit for

a Zoom Air unit for responsive cushioning

Fit: Classic relaxed baggy skate profile with a wide leg opening

The GT designation signals a pro-model spec: higher foxing tape placement

TX the Wino G6 is infused with a G6 PU Insole for first-rate cushioning

Spitfire Formula Four Classic 99a Skateboard Wheels Size in millimeters:55mm a Zoom Air unit for99a Durometer The #1 Shape in skateboarding worldwide proven for speed and control. Unmatched abrasion resistance for fewer flat spots. More controllable grip. Lasting speed no matter the terrain. Smooth anti slick slide and a longer lasting size and shape. Color corresponds to size Set of four Shop the full collection of skateboard wheels