Set of Four Wheels

Spitfire Formula Four Classic Wheels are the newest wheel by Spitfire. Spitfire Formula Four Urethane was developed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another. Formula Four'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.

Specs:
Formulated for a harder, faster ride
Flatspot resistance
Smooth anti-stick slide
More speed and control
100% true performance urethane
Holds shape longer

Formula Four Urethane is made using a 100% pure urethane compound. Formula Four's exclusive combination of High Rebound and Hard Duro produces a faster wheel everywhere. Higher rebound for faster speeds over rough and smooth surfaces. Hard Duro for a harder, faster ride that won't mush out over time. Formula Four's exclusive anti-stick slide gives a fast/consistent, smooth slide all the way through. Slide with confidence start to finish knowing your wheels won't skip or catch mid-slide.

Diameter: 54mm
Durometer: 99A
Width: 34mm
Riding Surface: 20mm
Shape: Radial (Round edge design for control, speed, and a responsive slide)
Color: White
*stock photo may show different size*