Robart Tire has a tough outer skin, softer inner core and a low bounce design.
Available in sizes from 4" to 6" and are available with a machined aluminum hub with No Spoke, 8 Spoke, 10 Spoke, Scale P-51 10 Spoke, 3, 4 & 5 Spoke Spitfire Hubs and P-38 6 Spoke Nose Hubs and all aluminum hubs have a replaceable bronze bearings for 1/4" Axles.