Spitfire Formula Four 99D Classics Skateboard Wheels Size:60mm After several hours of propping

After several hours of propping and rigging

Try Street Tech Formula™ wheels on your next setup and see for yourself

withstood more abuse and performed superior to all other wheels

Laptop Dimensions: 10

Spitfire Formula Four 99D Classics Skateboard Wheels Size:60mm After several hours of proppingDesigned 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