20/05/2018
In the realm of automotive maintenance, achieving a smooth and vibration-free driving experience is paramount. For discerning drivers and meticulous mechanics alike, the quest for the perfect wheel and tyre balance is a continuous pursuit. Recently, our workshop has welcomed a significant upgrade to our equipment arsenal: the Hunter Road Force ® Elite wheel balancer. This cutting-edge machine represents a leap forward in wheel balancing technology, offering a comprehensive solution that not only addresses traditional balancing needs but also delves deeper to resolve challenging wheel vibration issues. By simulating road forces, the Road Force Elite optimises the wheel and tyre combination, promising a substantial enhancement in your vehicle's performance and your overall driving pleasure.

Understanding Traditional Wheel Balancing
Before delving into the specifics of the Road Force Elite, it's essential to grasp the fundamentals of traditional wheel balancing. Wheels and tyres, even when manufactured to precise standards, are never perfectly uniform. Slight variations in weight distribution, due to factors like valve stems, tyre tread patterns, and manufacturing tolerances, can lead to an imbalance. When a wheel rotates at speed, these imbalances create centrifugal forces that manifest as vibrations, often felt through the steering wheel or the vehicle's chassis. Traditional balancing machines work by spinning the wheel and tyre assembly at a controlled speed and using sensors to detect these imbalances. Weights are then attached to the rim at specific locations to counteract the imbalance, thereby creating a smoother rotation.
The Limitations of Traditional Balancing
While traditional balancing is effective for many common imbalances, it has its limitations. It primarily addresses the static and dynamic imbalance of the wheel and tyre assembly itself, assuming the rim and tyre are perfectly round and complementary. However, real-world driving conditions involve more than just the wheel assembly; they include the forces exerted by the road surface. Tyres are not perfectly round, and the stiffness of their sidewalls can vary. When a tyre encounters the road, it deforms, and this deformation, combined with variations in the rim's runout, can introduce forces that a standard balancer might not detect or fully address. These are often referred to as 'road force' issues.
Introducing the Hunter Road Force ® Elite
The Hunter Road Force ® Elite is engineered to overcome these limitations. Dubbed the world’s fastest diagnostic wheel balancer from Hunter, this machine employs groundbreaking, patented technology to identify and solve even the most complex wheel vibration problems. What sets it apart is its ability to simulate road forces. During the balancing process, the Road Force Elite applies a measuring wheel with a specific force against the tyre, mimicking the pressure the tyre experiences when in contact with the road. This allows the machine to measure the total system imbalance, including the forces generated by the tyre and rim combination.
How Road Force Balancing Works
The process is remarkably sophisticated yet straightforward for the operator. Once the wheel and tyre assembly is mounted on the balancer, the Road Force Elite performs several key measurements:
- Traditional Balancing: It first performs a standard balance, identifying and compensating for static and dynamic imbalances using counterweights.
- Road Force Measurement: A roller, attached to the balancer, is pressed against the tyre tread with a controlled force (typically around 1,400 pounds, simulating driving conditions).
- Runout Measurement: As the roller applies pressure, the machine measures the lateral (side-to-side) and radial (up-and-down) runout of both the tyre and the rim. This reveals any imperfections in their roundness.
- Force Matching®: This is a key patented feature. The Road Force Elite identifies the stiffest and softest points on the tyre and the rim. It then recommends rotating the tyre on the rim to align the stiffest point of the tyre with the lowest point of runout on the rim. This process, known as Force Matching®, significantly reduces the forces the tyre exerts on the road, thereby minimising vibrations that are often imperceptible to traditional balancing methods.
Benefits of Road Force Balancing
The advantages of employing the Hunter Road Force ® Elite are numerous and directly translate into an improved driving experience:
- Eliminates Stubborn Vibrations: It excels at diagnosing and resolving vibrations that persist even after traditional balancing. This includes issues like tyre sidewall stiffness variations, tread lift, or minor wheel runout that cause a subtle but annoying shimmy.
- Optimised Wheel and Tyre Performance: By ensuring the entire wheel and tyre system is balanced under simulated road conditions, the Elite maximises the efficiency and smoothness of your vehicle.
- Extended Tyre Life: Proper balancing reduces uneven tyre wear caused by vibrations and forces. This means your tyres will last longer, offering better value for money.
- Improved Fuel Efficiency: A well-balanced and properly seated tyre can reduce rolling resistance, potentially leading to slight improvements in fuel economy.
- Enhanced Driving Comfort: The most noticeable benefit is a significantly smoother ride. Eliminating vibrations reduces driver fatigue and makes every journey more enjoyable.
- Faster Diagnosis: Hunter claims the Road Force Elite can identify and solve challenging wheel vibration issues in as little as 70 seconds, making it more efficient than standard balancing procedures when dealing with complex problems.
When Should You Consider Road Force Balancing?
While regular wheel balancing is a routine maintenance task, there are specific scenarios where Road Force balancing is particularly beneficial:
- Persistent Vibrations: If you experience vibrations that traditional balancing hasn't resolved, or if new vibrations have appeared.
- New Tyres: When fitting new tyres, especially if they are performance-oriented or have a directional tread pattern, Road Force balancing ensures optimal setup from the start.
- After Wheel Repair: If your wheels have undergone straightening or repair, a Road Force balance is crucial to account for any residual imperfections.
- Ride Quality Concerns: If you simply want to ensure the absolute best possible ride quality and eliminate any hint of vibration.
Road Force Elite vs. Standard Balancer: A Comparison
To highlight the advancements, let's compare the two:
| Feature | Standard Balancer | Hunter Road Force ® Elite |
|---|---|---|
| Balancing Method | Static and dynamic weight balancing | Static, dynamic weight balancing, PLUS simulated road force measurement and Force Matching® |
| Diagnosis Capability | Identifies and corrects weight imbalances | Identifies weight imbalances, tyre runout, rim runout, and tyre stiffness variations |
| Problem Resolution | Effective for basic imbalances | Solves complex vibrations, including those caused by tyre/rim imperfections |
| Speed | Standard balancing time | Can diagnose and solve complex issues in as little as 70 seconds (faster for difficult problems) |
| Outcome | Smoother rotation of the wheel assembly | Optimised wheel and tyre system for superior ride comfort and performance |
Frequently Asked Questions
Q1: Is Road Force balancing necessary for all cars?
While not strictly necessary for every vehicle on every occasion, it is highly recommended for vehicles where ride quality is a priority, or where persistent vibrations are an issue. It offers a superior level of refinement compared to standard balancing.
Q2: How long does a Road Force balancing service take?
A standard balancing procedure on the Road Force Elite is comparable to a traditional balancer. However, for diagnostic balancing, it can take slightly longer as the machine performs additional measurements. Hunter states it can solve challenging issues in around 70 seconds, indicating the efficiency of the diagnostic process itself.

Q3: Will Road Force balancing fix bent wheels?
The Road Force Elite can detect runout in wheels, which is a sign of a bent or damaged rim. While it can identify the problem and guide the technician, it cannot physically straighten a bent wheel. A wheel alignment specialist or wheel repair service would be needed for that.
Q4: What is the difference between Force Matching and traditional weight balancing?
Traditional weight balancing adds counterweights to the rim to offset uneven weight distribution. Force Matching ®, on the other hand, involves repositioning the tyre on the rim to align the tyre's stiffest point with the rim's least round point (runout), thereby reducing the overall force variation as the wheel rotates.
Q5: Can I feel the difference after a Road Force balance?
Absolutely. The primary goal of Road Force balancing is to eliminate vibrations that may be subtle or difficult to diagnose. Drivers often report a significantly smoother, more refined ride after this service, with a noticeable reduction in steering wheel shimmy or chassis vibrations.
Conclusion
The Hunter Road Force ® Elite wheel balancer represents a significant advancement in automotive wheel and tyre service. By simulating road forces and employing sophisticated diagnostic capabilities, it moves beyond the limitations of traditional balancing to address the root causes of many persistent vibration issues. For workshops investing in the best equipment, and for drivers who demand the utmost in ride comfort and vehicle performance, the Road Force Elite is an invaluable tool. It ensures that your wheels and tyres are not just balanced in isolation, but are optimally integrated with your vehicle to provide a truly superior driving experience. Enhancing this critical aspect of your car will undoubtedly elevate your enjoyment and confidence on the road.
If you want to read more articles similar to Hunter Road Force Elite: The Ultimate Balancer, you can visit the Wheels category.
