Spitfire Formula Four 99D Classics Skateboard Wheels - White/Blue Size:56mm Blackrivers werethe first professional fingerboard

Blackrivers werethe first professional fingerboard trucks are ready with a few nice innovations

giving you the best of both worlds and a crazy smooth ride

Bluetooth® wireless with 8-hour rechargeable battery

Twill neck tape

and configure your park any way you like

Spitfire Formula Four 99D Classics Skateboard Wheels - White/Blue Size:56mm Blackrivers werethe first professional fingerboardDesigned 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 the expense of another. Manufactured using a 100% pure urethane compound, Formula Four wheels out