Introducing Spitfire’s Formula Four 93 Duro Soft Sliders!

• The most controllable and consistent sliding soft wheel out.

• Soft Duro combined w/ High Rebound compound absorbs more impact & vibrations – easier on your body for longer sessions.

• Holds speed through even the roughest terrain.

• Reliable grip when you need it.

• Unmatched Formula Four flatspot resistance.