Search new + high quality used tires online. Size 235 45 R20 starting at: $69.97. Tires in stock: 38. Available brands: 6 with 18 models. All season: 20. Winter: 5. Summer: 13.. 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!