Spitfire Skateboard Wheels Formula Four Radial Full Natural 56mm SILVER 53mm height diameter wheels with

53mm height diameter wheels with a 99A hardness rating suitable for all terrain

99a hardness rating

78a urethane

high speed ceramic oil

Hollow ST1 comes in a timeless polished silver finish with a hollow kingpin design

Spitfire Skateboard Wheels Formula Four Radial Full Natural 56mm SILVER 53mm height diameter wheels withSpitfire Skateboard Wheels Formula Four Radial Full Natural 56mm Features: Price is for a set of 4 Wheels Radial Full shape taking the same shape as radials and increasing the riding surface. Formula Four Urethane and 99DU Hardness Renound Spitfire high quality poured 100% urethane. Spitfires formula four wheels are made from specially developed performance urethane, that holds shape, has fewer flat spots and a controllable grip.