Search new + high quality used tires online. Size 285 45 R21 starting at: $28.56. Tires in stock: 62. Available brands: 6 with 13 models. All season: 57. Summer: 5. Run flat: 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!