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

the axles wont protrude and scratch the floor

Applies pressure and doesn't force denting to shields

Thunder trucks have always been known for their quick turning response

Weight: 290g for S/M

OJ Mini Super Juice White 78a Soft Skateboard Wheels White 55mm SIZE_11uk Spitfire Formula Four Urethane was55mm height diameter with a 78a hardness rating. Redesigned chip resistant shape. 78a hardness rating. Buttery urethane perfect for cruiser setups but still roll true on concrete, street and ramps. OJ Wheels flatspot resistant quality poured urethane.