Search new + high quality used tires online. Size 305 30 R20 starting at: $118.66. Tires in stock: 34. Available brands: 6 with 19 models. All season: 2. Winter: 8. Summer: 24.. 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!