Traditional Balancing Methods Require More Correction Weight

Most balancers calculate correction weight using technology developed during the 1970's when wheels with rim flanges were common. When applied to today's alloy wheels, traditional balancing methods require more weight to achieve the same amount of imbalance correction. When weights are moved from the rim to the inside of the wheel, weight placement is narrowed, tape weights are required, and much more correction weight will be necessary to correct the same imbalance*.

Static and Couple Vibration Forces

Traditional balancers use a fixed tolerance on correction weights regardless of the weight location chosen, effectively placing equal emphasis on static and couple imbalance. However, all vehicles are inherently much more sensitive to static vibration force than couple force.

OEM testing and specifications show that wheels can tolerate up to five times as much couple imbalance as static imbalance before a noticeable vibration occurs in the vehicle.**

**Based on a 15” X 6” wheel with clip weights.

SmartWeight Technology Provides the Best Possible Balance and Ride

Traditional balancing methods have several deficiencies. The first is applying the tolerance to which the wheel is balanced to the displayed correction weight instead of the actual vibration force. The second limitation is that it applies the same tolerance to both static and couple imbalance conditions.

With most wheel assemblies this tolerance is too loose for static imbalance and too tight for couple imbalance. This can result in the application of unnecessarily high amounts of correction weight and time wasted on repeated check spins.

SmartWeight balancing evaluates static and couple forces independently, applies separate tolerances, and then computes corrections weights based on vibration force reduction, not weight correction. Each tolerance limit is based on the amount of force needed to induce

noticeable vibration in a given wheel assembly. Using the WeightSaver™ feature, SmartWeight balancing minimizes the amount of weight required and applies correction weights only when a force exceeds the limit that will cause a noticeable vibration.