Search new + high quality used tires online. Size 235 50 R20 starting at: $24. Tires in stock: 24. Available brands: 5 with 8 models. All season: 23. Summer: 1. Run flat: 10. 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!