[Ratcher]

Originally Posted by COChris

[IMG][/IMG]

2NH brakes after 7 track days, maybe 10 hours on track. Running Ferodo DS2500 pads, Castrol SRF brake fluid, and titanium caliper shims. 25,500 miles total.

Edit: maybe that was a press car. Went through that jungle looking for my 1M. Or another possibility it was tracked and improperly cooled-down. This also points to it being a press car. Perillo BMW of Chicago has been known to resell them.

You need to drive it hard, you know... my brand new discs look worse than that in 1 hour of track duty.

[jritt@essex]

Here is a helpful article on when it's time to replace cracked iron brake discs. It shows discs in various states of destruction/decay. Thanks!

When is it time to replace my iron brake discs?

[Fred Conoway]

Originally Posted by jritt@essex

Here is a helpful article on when it's time to replace cracked iron brake discs. It shows discs in various states of destruction/decay. Thanks!

When is it time to replace my iron brake discs?

Great article, thanks for sharing!

[AUSf22]

Originally Posted by Ratcher

Mine looked much worse at 35.000km - was tracked a lot - and still worked flawlessly. For what's worth

Still went to the track 4 times after this picture was taken as it still had enough thickness

Ours look very similar! I've done 13 trackdays and 22,000 kms and here's how mine look, 3rd set of pads for these rotors also.