- When an uneven road surface causes a vehicle to steer or lose directional stability, this is called "bump steer." At the front, bump steer is associated with the tie-rod and linkage-arm relationship. It is caused by the method of locating the rear suspension, the type of rear suspension, and the geometry of the various linkages. In race cars, bump steer is designed out of the suspension so that the handling is as precise as possible. In most cars it is present to some degree. In fact, it can be useful to allow engineers to design a small amount of understeer or oversteer into the chassis.
Dictionary of automotive terms. 2015.
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Bump Steer — is the term for the tendency of a wheel to steer as it moves upwards into jounce. It is typically measured in degrees per metre or degrees per foot.On modern cars the front of the tire moves outwards, as the suspension is raised, a process known… … Wikipedia
bump steer — /ˈbʌmp stɪə/ (say bump stear) noun the tendency of a motor vehicle to steer off course momentarily after a wheel strikes a road bump … Australian English dictionary
steer — See bump steer neutral steer ride steer roll steer roll steer effect toe steer torque steer … Dictionary of automotive terms
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