Formula Four 97 Duro Conical Full Skateboard Wheels

The Spitfire Formula Four 97a Conical Full Natural is a wide-profile, high-performance skateboard wheel designed for smooth rides and reliable control across rough and mixed terrain.

Durometer (97a): Softer than traditional hard park wheels (like 101a) but harder than soft cruiser wheels, the 97a durometer absorbs rough street vibrations and offers extra grip on wood ramps while maintaining high speed.

Conical Full Shape: Features an extra-wide riding surface for maximum stability, speed retention, and lock-in on grinds, paired with cutaway sidewalls to reduce overall weight.

Formula Four Urethane: Made with 100% pure performance urethane that resists flat spots, offers a smooth anti-stick slide, and holds its original size and shape much longer than standard wheels.