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At 60 miles per hour, an average size tire rotates 850 times per minute. At this speed, slight variations in balance, sidewall stiffness or roundness can cause the wheel to literally slam into the pavement 14 times a second. The ultra-sensitive road feel of today's vehicles gives drivers a hands-on detection of vibration, a warning of potential problems. Unchecked, excessive wheel vibration can result in expensive damages and unsafe driving conditions such as:
Static wheel balancing uses a single weight plane and only addresses "up-and-down" imbalance. This is simply not adequate for today's wheel vibration sensitive vehicles.
Dynamic wheel balancing uses two weight planes. This eliminates "up-and-down" and "side-to-side" imbalance. Dynamic, two plane wheel balance should always be requested, even on custom wheels when hidden weights are required.
A perfectly balanced tire can still vibrate due to Force Variation.
Wheel Force Variation is most frequently due to wheel runout or uneven tread or sidewall stiffness in the tire. Runout is when a tire or rim is out of round when rolling; frequent causes are a bent rim or uneven tire wear.
Uneven tread or sidewall stiffness can be found in new or worn tires. Tires by design are never uniformly flexible throughout nor are they perfectly round. And no two tires are exactly alike in these characteristics.
1. Match mounting a tire and rim by matching the high point or stiff spot in the tire with the lowest spot in the rim, can make the wheel "round when rolling."
2. In some cases a wheel is so out of round it should be replaced.
3. In some cases a tire with excessive Force Variation is defective.
Improper tire pressure and/or misalignment causes irregular tire wear which creates and amplifies imbalance, resulting in wheel vibration. Alignment can be adjusted and wheels serviced to reduce or stop the vibration. Ask your technician.
A knowledgeable technician with proper training and equipment can diagnose these problems. But, the only way to rule out all wheel-related vibration is with the Hunter GSP9700 Vibration Control System.
Going far beyond the traditional functions of a wheel balancer…
The GSP9700 measures radial and lateral tire forces and provides instructions for solving ride and handling problems such as tire pull and wheel vibration that balancers and wheel aligners cannot fix.
Hunter’s GSP9700 is endorsed and recommended by vehicle manufacturers and proven by repair facilities worldwide as the industry standard in...
Solve Tire Pull Problems With the Hunter GSP9700 That Alignment Service Can’t Fix
Tire-related pulls are caused by lateral forces in the tires. Lateral force is the amount of left or right pull force created as the tire rolls along the road. This condition may cause a vehicle to steer away from straight-ahead. These forces are primarily created by conicity and cannot be detected during standard balancing or alignment service.
Deliver the Ultimate in Customer Satisfaction
The StraightTrak® LFM feature measures lateral tire force during the GSP9700’s Road Force Measurement® test. The GSP9700 then applies this lateral force information to the set of tires, providing the technician with optimal placement choices about the vehicle.
We make no guarantees or warranties, either expressed or implied, with respect to the data on this site. All dollar amounts, rates, specifications, equipment and other data are subject to change without notice.
Hogan Tire was founded in 1915, just as the automobile was born. With thousands of tires in each location, state of the art equipment, and certified tire technicians, we are committed to continue our tradition of providing truly superior products, service, and value. Carrying the latest in name brands like MICHELIN® tires, we're sure to have the perfect set of tires for you. Please don’t hesitate to contact us for any assistance you may need. We’re here to help!
Ed, Tom, and Bill Hogan
North Beverly, MA