Search new + high quality used tires online. Size 235 40 ZR20 starting at: $103.49. Tires in stock: 10. Available brands: 2 with 3 models. All season: 5. Summer: 5.. 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!