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Braking?

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lambert:
If one fits larger diameter tyres it follows that there will be a larger effort required from the brakes to effect a similar stopping distance. This will only be exasperated when fully loaded and or towing a big trailer.
 
Sooo. Does it then make sense to use a softer compound pad on the front to give more bite at the expense of pad life? Don't really want to go for bigger rotors as i like the look of smaller wheels and bigger side walls.

Edge:
The only trouble i ever had in braking/stopping with 35" tyres fitted was after a session of river and deep mud driving at Drumclog.... other than that braking seemed pretty much the same.

carbore:
I dont think larger tires mean you need more braking effort.  Braking converts the energy of momentum of the vehicle into heat via friction of pad to disc, thus casuing the slowing effect. OK there will be a little "flywheel" effect from the fact that they tire/wheel combo may be heavier, but not due to size.  The grip of the tire to the road is only "containing" the slowing effect caused by the friction heat loss.

A softer pad may give more "bite" but you will get fade anyway as the heat builds up and reduces the braking effect. That said a good quality pad, perhaps a "towing" spec if such a thing exists, may help?

If you want better brakes under load then bigger (or vented or exotic compound) disks and ducting to get more air on them, but beware the possibility for ducting water to them (spray).

I think.

paradigm shift:
You're right, bigger diameter tyres would in theory reduce the effective braking force (think of it in terms of moment). I doubt you'll notice much different in real terms though.

Lord Shagg-Pyle:
Yaaaarrrrrr! Chuck a big anchor out the back o' yer car, me old matey bucko! That'll soon stop the forward motion! but make sure the anchor be tied to some rope and then to yer car coz otherwise there wouldn't be  alot of point chucking it out, if you see what I mean :?

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