Search new + high quality used tires online. Size 255 40 ZR20 starting at: $42.24. Tires in stock: 98. Available brands: 17 with 35 models. All season: 40. Summer: 58.. 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!