Are there Bridgestone tires that should not be operated at sustained speeds above 65 mph?
Those tires are listed in the chart above. In order to operate these tires at sustained speeds above 65 mph, load must be reduced and inflation pressure increased per TRA guidelines. Have all tire manufacturers re-rated their tires this way? No. Each has taken a different approach. Some still adhere to the original TRA guidelines (that are based on 65 mph) for all their truck tires, some require only inflation pressure increases. You ll need to consult your tire manufacturer before operating their tires at speeds from 65 to 75 mph. For Bridgestone tires, consult the Bridgestone Medium and Light Truck Tire Price and Data Book, or call the Bridgestone Technical Hotline at 1-800-847-3272.