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.

Radial Shape: A round edge, medium width riding surface shape. Offers the versatility of the Classic shape and the width of a conical.

54mm x 34mm with a 20.5mm riding surface and Formula Four 93A durometer.