ROBERT SAYRE wrote in a message to ROY J. TELLASON:

RJT> I can't see the need for that. If I can lock the wheels, then what
RJT> would more calipers get me? The last thing I want is to lose the
RJT> grip the tires have on the road...

CA> Brakes don't 'lock' wheels.

RJT> Not usually,  no.  :-)  But I *can* if I need to.

RS>  Why would you ever "need to" (unless you're already stopped)? 

I wouldn't expect to,  but my point was that if the calipers would do that
job why double up on them?

RS> Stopping distance is greater with locked wheels, than with wheels 
RS> braked at the optimum amount for the conditions. See Charles' 
RS> excellent explaination below.

Saw that.

CA> Braking is a transfer of energy into heat. The more heat you can 
CA> generate in the shortest amount of time the faster you stop as long
CA> as you don't slide on insufficient rubber. Anti-lock brakes are
CA> supposed to stop you from losing traction if setup properly and
CA> maintained.

I would be more interested in finding heavier-duty rotors,  before I'd put
a second set of calipers on there.

I've had brakes fade on me only once or twice that I can recall,  and it's
a matter of how you drive in given conditions.  If I'm going on a long
downhill haul I'll downshift too,  where a lot of people won't.  And take
it easy...

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