Spitfire – Conical Full Formula Four 99 Duro – 58 Mm

Spitfire’s Formula Four is Spitfire’s latest polyurethane blend. The shape is Conical Full and the color of the wheels is “natural” with blue print on the front.

These wheels are 58 mm in diameter, 37 mm wide, have a contact patch (with the ground) of 27.3 mm, and come in 99A hardness – they grip & roll well.

The wheels are sold in 4-packs.