Search new + high quality used tires online. Size 255 40 R20 starting at: $42.24. Tires in stock: 11. Available brands: 6 with 9 models. All season: 4. Winter: 1. Summer: 6.. 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!