Spitfire Wheels: F4 99a Conical Coal Headwear The gentle low angle allows

The gentle low angle allows for maximum float and control

Forma X Ankle Strap – Exoframe exterior for instant response

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

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

Spitfire Wheels: F4 99a Conical Coal Headwear The gentle low angle allowsOverview 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