Spitfire Formula Four Conical Full 99du Skateboard Wheels Natural/Blue 52mm CATEGORY_Adult Helmets Durable tire tread with deep

Durable tire tread with deep flex grooves

Micro Groove Raceway Surfaces - Linear micro-groove surfaces improve bearing lubrication

BONES creates unique urethanes for specific applications of skateboarding

speed and spin

Spitfire Formula Four Conical Full 99du Skateboard Wheels Natural/Blue 52mm CATEGORY_Adult Helmets Durable tire tread with deepDescription WHEEL PROFILE Wide Wide wheels provide more traction and stability at high speed, so you'll be less likely to slip out of your line. SURFACE Smooth Smooth wheels have less surface friction than treaded wheels and are easier to slide. KEY FEATURES Formula Four Urethane Unmatched abrasion resistance for fewer flat spots. More controllable grip. Lasting speed no matter the terrain. Smooth anti slick slide and a longer lasting size and shape.