why do bigger brakes make you stop faster?

why do bigger brakes make you stop faster?

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littleguy

Original Poster:

190 posts

123 months

Tuesday 10th November 2015
quotequote all
This may be a terribly stupid question, so bear with me...

In a non-ABS car, when you stamp on the brakes (to carry out an emergency stop for example) the car comes to a halt. It's often advertised that bigger discs/pads allows you to stop quicker, but why? With your foot fully on the brakes doesn't it, theoretically, stop the wheels moving instantly - therefore not affected by the size of the contact?

Surely this is controlled a lot more by the tyres than the 'size' of the brakes?

What am I missing here?

littleguy

Original Poster:

190 posts

123 months

Tuesday 10th November 2015
quotequote all
I'm worried by getting all these sensible responses, even if they are useful!