Spitfire Wheels Formula Four Radial Full 54mm 99a

Spitfire Formula Four Radial Full 54mm 99a wheels are a top-tier choice if you want maximum speed, consistency, and predictable slide without sacrificing control. With Spitfire’s Formula Four urethane and the wider Radial Full shape, these wheels give you a stable platform for fast park skating, street lines, and powerful slides—especially if you like a wider, more “locked-in” feel underfoot.

Technical specs

• Brand: Spitfire Wheels

• Model / series: Formula Four

• Wheel shape: Radial Full

• Diameter: 54 mm

• Durometer (hardness): 99a

• Width: 38 mm

• Contact patch: ~25 mm

• Urethane features: high abrasion resistance, unmatched flatspot resistance, smooth anti-stick slide, high rebound compound

• Use: all terrains

• Pack size: 4 wheels

Key benefits

• Formula Four urethane → extremely consistent slide and long-lasting performance

• Unmatched flatspot resistance → stays smooth even after hard powerslides

• Anti-stick slide feel → faster, cleaner slides that don’t “catch” unexpectedly

• Radial Full wide shape → stable landings and strong control at speed

• High rebound compound → keeps speed through rougher ground and transitions

Performance & ride feel

These wheels feel fast, stable, and confidence-inspiring—especially if you like a wider wheel that holds its line through parks, bowls, and crusty streets. The Radial Full profile gives a forgiving ride with a solid contact patch, while Formula Four delivers that classic Spitfire slide: smooth, quick, and controlled without feeling sketchy.

• Fast roll with strong speed retention

• Predictable grip-to-slide transition for controlled powerslides

• Wide riding surface for stability on landings and at high speed

• Great choice for park/transition while still handling street sessions well

How does it feel underfoot? Stable, fast, and smooth with a wide, planted feel and predictable slide.
Is it best for street, park, transition, or all-terrain? All-terrain, with extra stability for park and transition due to the wider Radial Full shape.

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