The Classic is the #1 Shape in skateboarding worldwide. It is proven to deliver speed and control. Overall, these wheels have a relatively slim riding surface with rounded edges, making these a good all rounder whatever your preferred terrain.
Spitfire’s Formula Four Performance Urethane lasts longer, withstands more abuse and performs superior to all other wheels. Formula Four Urethane was developed to combine all the desired properties of a performance wheel without improving any one attribute at the expense of another. F4’s True lasting Performance Urethane comes not from a single benefit, but from a combination of qualities and features that together produce a truly great wheel.
Formula Four Performance Urethane is unlike any other. Formula Four wheels retain more material, cone less and keep their original shapes and sizes longer than any other wheel.
- Diameter: 56mm
- Durometer: 99a
- Width: 35.3mm
- Contact patch: 17.8mm
- Formula Four urethane formula