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The ratio between the turn of the steering wheel (in degree) to the turn of the wheel (in degree) is known as steering ratio. For example: If360 degree turn of steering wheel gets the tires turn to20 degree, the steering ratio is equal to (360/20) i:e18:1. The higher steering ratio means steering wheel needs to be turned more whereas the lower steering ratio means car's wheels respond more quickly to smaller turns of steering wheel.
Ratio of turn in steering wheel to the turn of the wheels or tyres(both in degrees).
