Spitfire F4 99D Multiball 56mm OG Classic Formula Four Wheels

Spitfire F4 99D Multiball 56mm OG Classic Formula Four Wheels

The Spitfire F4 Formula Four 99D Multiball is built for skaters who demand maximum speed and slide performance. At 99D durometer, these wheels are hard, fast, and dialled for smooth surfaces, skateparks, and technical street skating where slip and release is everything. Formula Four urethane keeps them flat-spot resistant and consistent session after session.

• 56mm diameter for responsive street and skatepark performance
• 99D durometer delivers fast, hard-wearing performance on smooth surfaces
• Formula Four urethane resists flat spots and outlasts standard compounds
• OG Classic medium-width riding surface with round sidewalls
• High-density rebound for explosive pop and speed retention
• Natural urethane finish with Multiball graphic
• Made in Mexico with premium-grade urethane

If you skate smooth ground and want wheels that keep up, these are your match.

Q: Who are these wheels best suited to?
Intermediate to advanced skaters who ride smooth concrete, skateparks, or indoor facilities. The 99D hardness rewards technical skating and controlled slides on polished surfaces.

Q: How do Formula Four wheels compare to standard urethane?
Formula Four's proprietary compound is abrasion-resistant, flat-spot resistant, and maintains speed longer than conventional urethane, making it the choice of professional skaters worldwide.

Q: Are 99D wheels too hard for rough pavement?
Yes. 99D is best on smooth surfaces. If you skate rough streets or mixed terrain regularly, a softer durometer like 93D will offer more grip and vibration absorption.