Spitfire Formula Four OG Classics Skateboard Wheels 99d 54mm Size:54 Fluid Core boosts flex

Fluid Core boosts flex

chromium steel (HRC 67) Inner and Outter raceways are 52100 carbon

and the optimum stance puts you in the sweet spot of the traditional camber and side cut

winterproof

Iced Pineapple and Strawberry

Spitfire Formula Four OG Classics Skateboard Wheels 99d 54mm Size:54 Fluid Core boosts flexFormula Four Urethane: An unbeatable, lasting performance urethane. Fast, long lasting, abrasion resistance with a smooth anti slip slide and controllable grip. 99 Duro: made for speed and lasting control on all surfaces. OG Classics shape: Spitfire's original cut away shape. Features a wider riding surface, lightened with cut away sidewalls.