Search new + high quality used tires online. Size 235 45 R20 starting at: $53.92. Tires in stock: 50. Available brands: 6 with 13 models. All season: 30. Winter: 1. Summer: 19.. 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!