Spitfire Formula Four Classic 93A 58mm the-north-face The Knu Skool is a

The Knu Skool is a modern interpretation of a classic 90s style

• Printed artwork at left chest and back

Velcro® adjustable cuff tabs

Artwork by Mark Gonzales

Spitfire Formula Four Classic 93A 58mm the-north-face The Knu Skool is aRide the fire through the streets with the newly introduced, Spitfire Formula 4 Classic 93a Wheels. Designed with your favorite classic Spitfire Classic wheel designs and manufactured with the quality high performance, Formula Four urethane. Formula Four Urethane lasts longer, withstands more abuse and performs superior to all other wheels. Designed to combine all the desired properties of a performance wheel without sacrificing any one attribute at