What is the 3% tire rule?
The 3% rule states that when replacing tires, the new tire’s diameter should not differ from the original by more than 3%. This guideline helps maintain proper vehicle performance, safety system functionality, and speedometer accuracy. Simply put, plus sizing is when the size of the tires and/or wheels from the original size (Original Equipment, or OE) is increased. The idea is to maintain the same diameter and circumference as the OE setup to minimize changes in speedometer accuracy, traction, and power. This is also referred to as the 3% rule.The 3% rule states that when replacing tires, the new tire’s diameter should not differ from the original by more than 3%. This guideline helps maintain proper vehicle performance, safety system functionality, and speedometer accuracy.
What is the 3% rule for tires?
If they’re too large, they could scrape on the inside of the fender every time you make a turn. As a general rule, you want replacement tires that are within 3 percent of the diameter (height) measurement of the tires originally on your vehicle. Wrong-sized tires can put extra strain on your vehicle’s drivetrain, suspension, and braking systems. If the tires are too large, they may rub against the wheel wells or fenders, damaging both the tire and the vehicle body.
What is the 7 7 rule for tires?
If you leave them on too late, your winter tires will degrade quickly. So, when is the right time to swap? The rule of thumb is 7-for-7: wait until there are seven consistent days at 7 degrees Celsius. The reverse is also true for transitioning to winter. Early Winter Preparation: For those anticipating early winter weather, fall is an ideal time to switch to winter tires before the first snowfall. Buying winter tires in the fall ensures you are well-prepared and can avoid the rush when demand is high.If you leave them on too late, your winter tires will degrade quickly. So, when is the right time to swap? The rule of thumb is 7-for-7: wait until there are seven consistent days at 7 degrees Celsius.