Spitfire Formula Four 99A Conical Full 53mm WKND 52mm OJ Wheels to make

52mm OJ Wheels to make rolling easier

Adjustable snap closure on the back

1 set consists of 2 blue

Straight leg

Spitfire Formula Four 99A Conical Full 53mm WKND 52mm OJ Wheels to makeThe Conical Full are Spitfire Formula Four skateboard wheels. The Formula Four urethane compound is definitely one of the best on the market. Formula Fours slide well, last a long time, and are extremely resistant to flat spots. Spitfire's Conical Full Shape is tapered with a slightly wider tread for durability and more control, even at high speeds. The straight edge on the inside makes it easier to curl into grinds. With 99A the wheels have a