Search new + high quality used tires online. Size 305 40 R20 starting at: $81.43. Tires in stock: 117. Available brands: 9 with 18 models. All season: 88. Winter: 12. Summer: 17. Run flat: 7. Selling all used tires at discount costs. All used tires go through 2 layers of inspection on specialized equipment. One year warranty + free shipping on all inventory ;) Happy shopping!