Tires by design are never uniformly flexible throughout nor are they perfectly round. And no two tires are exactly alike in these characteristics. Alignment can be adjusted and wheels serviced to reduce or stop the vibration. Additionally, tires can lose 1 psi for every 10 degrees F temperature drop. Always check your air pressure to make sure it's up to standards, especially if you're carrying extra weight.
Lower pressure increases heat which can result in tire damage.
Remove tire valve cap. Press the tire gauge straight and firmly until the scale extends. If needed, add air and recheck pressure with the tire gauge. Replace valve caps. All Rights Reserved.