Quote:
Originally posted by sharp4runr
The fronts are larger because the front brakes do more of the braking work, thus they need a larger surface area to dissapate heat.. Also you wouldn't want your rear brakes to have too much bias because you wouldn't want to lock up your rear brakes and jack knife your rear end...
I'm sure there are other reasons and the more technical guys can give them.
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What he said. Front brakes are most important in a stop. As for front-rear brake balance, this is controlled by Electronic BrakeForce Distribution (EBD). This electronic thingy controls how much brake power goes to the front and rear depending on vehicle load.