Fitting and Balancing
In any vehicle, whether passenger or race, it is important to have well balanced wheels. Wheel balancing helps increase drive comfort (by reducing wobbles) and as a result, overall handling. A wheel is balanced on two planes: vertical (called the radial, or static plane), and side-to-side (referred to as the dynamic plane).
Types of disturbances
Disturbances of vertical balancing (up and down movement) can best be thought of as wheel 'bounce'. Radial or static disturbances occur in the form of side-to-side shakes or wobbles. A well balanced wheel should spin with all of its weight evenly distributed.