Spitfire Formula Four 101D Grey/Red Radials Skateboard Wheels Belts 56mm and is 101a in

56mm and is 101a in durometer

exposed Core-flex™

front utility pocket with organizer and a whopping 2100 cubic inches

Durometers: soft (orange

Thanks to the ledge on only one side of the obstacle

Spitfire Formula Four 101D Grey/Red Radials Skateboard Wheels Belts 56mm and is 101a inSpitfire Formula Four 101D 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