283mm

[Ed Doe]

High carbon discs actually often have worse heat dissipation than low carbon ones, and less friction in the wet, albeit more when dry. They just last longer.

Yeah but don't they operate at higher temperatures than standard discs? And as you say they also take more of a beating.

Or is the fact they last longer the main reason they are used; as CL pads are so heavy on the discs..?



ALSO @ Swampy, having read that back this morning my previous post comes across a bit shitty. My point really was in response to Piggy's initial comment regarding discs. If you buy the cheapest Eicher or Pagid discs from ECP or similar, you'll pay somethign in the region of £40 a pair, rather than the £80 a pair for Brembo equivalent. And you just wont see any difference. Hence my (slightly sweeping) statement that the disc was irrelevant, and the pad was what you wanted to spend the money on.

Anyway, the OP has his answer now