Search new + high quality used tires online. Size 235 45 R20 starting at: $57.38. Tires in stock: 43. Available brands: 7 with 15 models. All season: 13. Winter: 9. Summer: 21.. 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!