Search new + high quality used 255 40 ZR20 Michelin tires online, starting at: $64.52. 255 40ZR20 Michelin models in stock: 6. All season: 8. Summer: 9.. 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!