F4 99a Lock-In Full | Asst. Sizes

Medium - Your classic wheel shape, versatile all-around wheel for street/park skating.

Smooth - Smooth wheels have less surface friction than treaded wheels and are easier to slide.

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.