Search new + high quality used 285 45 R21 Bridgestone tires online, starting at: $27.29. 285 45R21 Bridgestone models in stock: 4. All season: 52. Winter: 19. Run flat: 62. 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!