Quote:
Originally Posted by fanvol
that doesn't make sense. I got new front ones volvo original which is 286mm but everywhere where I search for the rear ones when I give my registration number it shows me 288mm diameter discs.
I bought the front one online and I am wondering if the seller has done a typing mistake.
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I might have been a bit too generic with my statement.... I should have said lower braking capacity or something like that.
I believe the 288mm disc is a SOLID disk whereas the 286mm at the front is VENTED. So slightly smaller in size at the front but much higher heat/braking capacity.
FYI strangely the pad size makes no difference to the braking effort - the friction created when braking is a multiplication if the size of the pad and the pressure (i.e. kg/m2) being excerted - if you halve the pad size, the pressure doubles etc. It's the piston size in the caliper that matters (or more specifically the ratio of the rear pistons to the fronts).