Spitfire Formula Four 97D Radial Full Skateboard Wheels Sunglasses Absorbs 91% of impact energy

Absorbs 91% of impact energy in lab testing compared to 53% in other “performance” insoles (ASTM F 1614 -1999)

Style # NM508BBU

Length - 39"

Style #NM306NFU

Exodus Optical logo Embroidered Crewneck Sweatshirt

Spitfire Formula Four 97D Radial Full Skateboard Wheels Sunglasses Absorbs 91% of impact energySpitfire Formula Four 99D Radial Skateboard WheelsTested by Spitfire Team riders, Formula Four Performance Urethanelasted longer, withstood more abuse and performed superior to all other wheels. Spitfire Formula Four Urethane was developed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another. Formula Four's True lasting Performance Urethane comes not from a single benefit, but