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Leading shoe brakes: The leading shoe is the one that is in front of the rotating drum when the brakes are applied. Leading shoe brakes are more effective than trailing shoe brakes, but they are also more likely to lock up the wheels.
* Trailing shoe brakes: The trailing shoe is the one that is behind the rotating drum when the brakes are applied. Trailing shoe brakes are less effective than leading shoe brakes, but they are also less likely to lock up the wheels.
