Please NOTE: Due to the constant increases in shipping cost all Run Flat tires will have a 12.50 per tire shipping charge that will have to be paid. GPS RP Reliable pneumatic Spartan® Run-Flat ATV/UTV Tires IN STOCK and ready to ship. GPS has been Producing and supplying Distributors, Dealers and Retail customers all over the world with RUN-FLAT Atv/Utv tires for over a decade. The all NEW and better than ever GPS RP Spartan® II 12 ply run-flat tire coming soon.