Buy Big Tires is all about Off-the-Road (OTR) tires. We buy and sell new and used OTR tires for all types of heavy equipment, from cranes to tractors and everything in between. We also provide consulting services to heavy duty equipment dealers and to mining companies to ensure that they get the best tire for their equipment and operating environment. Our staff is knowledgeable and experienced. We work hard to get you even the most difficult to find OTR tires to keep your equipment in service and on the job.