Spitfire Formula Four 93A Soft Sliders. Controllable smooth slide and reliable grip. Soft duro with high rebound compound absorbs more impact and vibrations. Unmatched F4 flatspot resistance. Holds speed over any surface.

Lock-In Classic: Medium width asymmetrical design with a straight edge lock in cut for control and classic round outer sidewall for versatility on any terrain.

54mm x 33.6mm with a 19.5mm riding surface and Formula Four 93A durometer.