Spitfire Formula Four Lock-In Full 55mm 99a White & Orange Skateboard Wheels

From Spitfire Wheels, the Formula Four Lock-In skateboard wheels arrive in a 55mm construction with a 99a durometer rating. A wider iteration of the Lock-In shape, the wider contact patch means your skate setup has better traction at faster speeds. Made using Spitfire's legendary Formula Four urethane compound, the wheels are finished with conical outer edges and straight cut inner walls.