Spitfire Formula Four OG Classics 99a Wheels have a wider riding surface and cutaway design for unmatched control and lasting speed everywhere.

Features:

• Diameter: 53mm
  
• Durometer: 99a
  
• More speed and control on all surfaces
  
• Unmatched flat spot resistance
  
• Smooth anti-slick slide
  
• High rebound formula
  
• 100% True performance urethane