Keeping Your Tyres Balanced
For sake of example, assume you have driven your tyres 5,000 Kilometres since their purchase and it's time to rotate. Over the miles, turning left and right, hitting bumps and holes you could not see or avoid, and driving down uneven road surfaces have led to uneven treadwear on your tyres. Perhaps a pothole has knocked-out your vehicle's alignment (this creates uneven tyre wear). Well, besides rotating the tyres and getting an alignment to set things right, you should also rebalance the tyres. Even if you can't feel vibrations, they are present. The uneven treadwear has created an imbalance that generates excessive heat and wear on your tyres! Considering the hundreds of dollars you spent on your tyres, a rebalance is a wise expenditure.
Other Sources of Vibration
Very often the wheel/tyre assemblies on a vehicle may be in balance but you still feel a vibration. Here are some of the other causes of vibration:
• Bent wheel
• Tyre out of round (radial or lateral runout)
• Wheel to axle mounting error
• Inconsistent tyre sidewall stiffness (force variation)
• Brake component wear or failure
• Drive train or engine component wear or failure
• Suspension wear or failure
• Wheel bearing wear of failure
• Wheel alignment is out