Brake Disc Minimum Thickness

[Air Cooled Rookie]

Hi,
Does anyone know the minimum thickness for discs on a cross-over with early callipers?
Thanks

 

[BJ1]

12mm is the minimum for a skimmed disc.

 

[Air Cooled Rookie]

Thanks for that.

So mine at 8.4mm could do with replacment then! :shock:

I thought that they were probably worn due to the facts that new ones are 13mm thick, and that I haven't changed them in 12 years/40k miles of ownership.