Spitfire Wheels Formula Four Radial Full Purple (54mm/99d)

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Spitfire Wheels Formula Four Radial Full Purple (54mm/99d) bring a bold look and proven performance together in a way only Spitfire can. The deep purple graphic pops against the natural Formula Four urethane, anchored by the iconic Bighead design that’s been synonymous with speed, control, and durability for decades. At 54mm, this size hits the sweet spot for quick acceleration and responsive pop, while the Radial Full shape delivers a wider riding surface with smooth, rounded edges that lock in stability without sacrificing agility. The 99d Formula Four urethane is engineered to slide consistently, resist flat spots, and keep its speed session after session, whether you’re pushing crusty sidewalks or smooth park concrete.

The Radial Full profile is all about confidence underfoot—more contact patch than a classic shape, giving you predictable grip on approaches and clean release on slides. That wider stance feels right at home cruising from spot to spot around the SGV, rolling through parking blocks, ledges, and transition with a controlled, planted feel. Spitfire’s Formula Four blend has earned its reputation worldwide, trusted by skaters who demand wheels that don’t change character halfway through their lifespan. These are built to skate hard and stay consistent, from the first push to the last trick of the day.

SKU: 21110388B54

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.