The Spitfire Formula Four Radial Wheels (52mm/99d) offer a precision blend of performance, control, and durability, all in a shape engineered for consistent riding feel. With their rounded edge design, Radials are perfect for skaters who want a bit more surface contact without going full wide-boy. Built using Spitfire’s legendary Formula Four Urethane, these wheels are known to resist flat spots, maintain shape under pressure, and provide consistent grip and slide. The 52mm diameter is ideal for technical skating and park lines, while the 99a durometer delivers that perfect all-around hardness for smooth slides on street and solid lock-ins at the park.
The Radial shape splits the difference between the Classic and Conical shapes, offering medium width with a rounded edge and full riding surface for stability and responsiveness—ideal for skaters who ride everything from ledges to bowls. The wheel’s white urethane base is capped off with bold graphics featuring the iconic Spitfire Bighead flame head in blue and black, plus “Formula Four” branding stamped like a badge of honor.
Founded in San Francisco in 1987, Spitfire Wheels is a cornerstone of the skate world. From EMB to MACBA to your local DIY, Spitfire has backed the gnarliest riders and produced the most iconic wheels for decades. Formula Four, introduced in the 2010s, became the gold standard for serious skaters, offering unmatched flat spot resistance and control.
Product Specs:
SKU: 2111002252
Diameter: 52mm
Durometer: 99a
Shape: Radial
Width: 32mm
Riding Surface: 21.5mm
Urethane: Formula Four
Edge: Rounded
Color: White with graphic print
These are pro-grade wheels for skaters who know their setup matters and trust Spitfire’s time-tested urethane to come through in the streets or at the park.
Stix SGV has proudly served the San Gabriel Valley skateboarding community since the late ‘90s. With three locations across Los Angeles County, we’ve been deeply rooted in the local scene. Our Monrovia shop has been a staple since 1997, followed by our Claremont location in 2014, and our South Pasadena shop opening its doors in 2022. Our mission has always been simple: to uphold skateboarding culture and stay true to our community.
