Spitfire Wheels Formula Four Radial Full 56mm 99a

Spitfire Formula Four Radial Full 56mm 99A is a fast, stable wheel built for skaters who want maximum control without losing that classic Spitfire slide. With the wide Radial Full shape and Formula Four urethane, you get a smooth, predictable ride that holds speed and resists flatspots even when you’re doing heavy powerslides, reverts, and long sessions on rougher ground.

Technical specs

• Wheel diameter: 56 mm

• Durometer: 99A

• Formula: Spitfire Formula Four urethane

• Shape: Radial Full
  

• Pack size: 4 wheels

Key benefits

• Formula Four urethane → high flatspot resistance for consistent performance session after session

• Anti-stick slide → smooth, fast slides that don’t suddenly grab

• Radial Full shape → wide riding surface for stability and confidence at speed

• 99A hardness → perfect balance of speed and control for park + street

• 56mm size → holds speed well and rolls clean over crust and rougher spots

Performance & ride feel

These feel locked-in and stable, with a solid roll speed and a controlled slide that stays consistent even on rougher ground. The Radial Full profile gives you a wider, more planted feel than slimmer shapes, making them ideal if you like fast lines, solid landings, and predictable grip-to-slide behavior.

• Fast roll and strong speed retention

• Wide and stable ride for bigger landings

• Smooth, controllable slides (reverts/powerslides)

• Great all-terrain option for street + park

• Resists flatspots very well compared to standard urethane

How does it feel underfoot? Fast, stable, and confidence-inspiring with controlled slides.
Is it best for street, park, transition, or all-terrain? All-terrain (especially street + park).

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