Spitfire Formula Four Skateboard Wheels - Classic - 99 Duro

Built for skaters who demand control in every situation, the Spitfire Formula Four Classic 99a wheels feature a medium-width contact patch with rounded sidewalls, giving you a balanced feel for grip, slides, and technical tricks. Formula Four urethane ensures smooth rolls and flatspot resistance, making them reliable for street, park, or cruising sessions.

Key Features:

• Formula Four Urethane: Smooth, fast, flatspot-resistant.
• Classic Shape: Medium-width, rounded sidewalls for control in all situations.
• Durable Performance: Maintains roll and shape through heavy use.
• All-Around Skateboarding: Perfect for street, park, or mixed terrain.

Specifications:

• Durometer: 99a
• Shape: Classic
• Formula: Formula Four (F4)

Ride fast. Land clean. Roll Spitfire.

About Spitfire Wheels

Founded in 1987 by pro skater Jim Thiebaud and entrepreneur Fausto Vitello in San Francisco, Spitfire quickly became a cornerstone of skateboarding. Known for durable, high-performance wheels and their iconic flaming skull “Bighead” logo, Spitfire helped define street and park skating in the late ‘80s and ‘90s.

Innovation has always been at the core of Spitfire. From early urethane formulas that resisted flatspotting to today’s Formula Four line—renowned for speed, smoothness, and longevity—the brand keeps pushing what skateboard wheels can do.

Part of Deluxe Distribution, Spitfire continues to roll with legendary pros and rising talent alike, creating wheels, graphics, and products that capture skateboarding’s raw, creative spirit. When you ride Spitfire, you’re rolling with heritage, performance, and that unmistakable fire under your board.