Spitfire | Formula Four F4 Conical Full Skateboard Wheels. 52mm x 99a Size:52mm Features: Razor edge construction &

Features: Razor edge construction & wheel wells

Wheel Durometer: 78a

Outsole: Abrasion-resistant sticky rubber

Cushions: Responsive 90a cushions

Wheels: Nineballs 69MM x 78A

Spitfire | Formula Four F4 Conical Full Skateboard Wheels. 52mm x 99a Size:52mm Features: Razor edge construction &Spitfire Formula Four Conical Full skateboard wheels, performance urethane, wide conical shape. Urethane: Formula Four Wheel profile: Conical Full Diameter: 52mm Width: 32. 5mm Riding contact: 21mm Duro: 99a More speed and control on all surfaces Flatspot resistant Smooth anti stick slide High rebound compound 100% true performance urethane Set of four wheels A wider version of the conical shape. Wide riding surface. Cut in sidewalls to decrease