Quote:
Originally Posted by geraintthomas
Better at dispersing heat under heavy driving, notable on track, not on the street.
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Sorry, but that is b…****************.
Break discs drilled or slotted to get a faster break response it the discs are wet. If you don't have holes or slots you have a water / steam layer between disc and brake pad for a short time. That's why they started to put drill holes in the discs in race cars.
Cheap discs are normal discs that get drilled. In high-quality discs have the holes already included in the cast which are redrilled later in. These discs also don't tend to have stress cracks. But they are much expensive.
If don't drive in rain you don't need any drilled or slotted break discs.
Regards, Markus
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