Lockup

Lockup

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The juncture at which a tire starts to skid during braking. A tire’s maximum braking force is developed when it is on the verge of lockup, so a car’s shortest stopping distances are produced when its front and rear tires approach lockup simultaneously. This is very hard to achieve under varying conditions of load and traction, so one end typically locks up before the other. Front-wheel lockup is inherently more stable than rear-wheel lockup.

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