Spitfire Wheels: F4 99a Conical Coal Headwear Dial in the fit with

Dial in the fit with the Dual BOA Fit System featuring the TX3 lace

and more impact resistant compared to cast or poured-mold baseplates

The gentle low angle allows for maximum float and control

Pint-sized progression for even the littlest rippers with expandable sizing that grows with kids' feet

Forma X Ankle Strap – Exoframe exterior for instant response

Spitfire Wheels: F4 99a Conical Coal Headwear Dial in the fit withOverview KEEPING THE UNDERGROUND LIT Ride the fire with the Spitfire Formula 4 Radial Full 99a 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