Spitfire | Formula Four Classic Full Shroom Bighead Skateboard Wheels. 56mm x 99a

Spitfire Formula Four Classic Full Skateboard Wheels combining Spitfire's F4 Performance Urethane with Classic Full wide profile wheels. 

• Urethane: Formula Four  
• Wheel Profile: Classic Full
• Diameter: 56mm
• Width: 37mm
• Riding Contact: 23mm 
• Durometer / Hardness: 99a urethane
• Flatspot resistant
• Smooth anti-stick slide
• High rebound compound
• True performance urethane
• Set of four wheels

Spitfire's F4 urethane is formulated to deliver speed and control on all surfaces, flat-spot resistance and smooth anti-stick slide.
The Classic Full profile combines a traditional rounded symmetrical shape with a wider riding surface for increased stability, grip, and control on all terrain. Classic Full's offer superior lock-in for grinds and a smoother ride on rough ground compared to the standard, narrower Classic shape.