Search new + high quality used tires online. Size 245 40 R21 starting at: $89.23. Tires in stock: 13. Available brands: 5 with 5 models. All season: 3. Winter: 1. Summer: 9. Run flat: 10. 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!