F4 99D Lock-In Skateboard Wheels
Grind confidently with the Spitfire Formula Four Lock-Ins Skateboard Wheels. The Spitfire Lock-In shape features a familiar conical cut profile with a straight edge on the other side in order to lock into grinds for reduced slipping. Poured with Formula Four Urethane in a medium profile with a smooth surface.
Smooth - Smooth wheels come with a shiny coating on the riding surface that feels grippy at first, but wears away quickly.
Medium - Your classic wheel shape, versatile all-around wheel for street/park skating.
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.
Lock Ins Cut - Asymmetrically cut, you can get the benefits of conical outer walls while the inside wall is cut straight, giving you a flat surface to lock in your grinds.
99a - Offers more grip than harder wheels and more slide than softer wheels. Great for slick surfaces when you want more control.
