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      07-09-2019, 10:25 AM   #2
asbrr
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Canada
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Drives: 128i Sport
Join Date: May 2015
Location: Toronto

iTrader: (1)

My guess is those are the beginnings of real cracks....you are probably ok for the street for a while but will need to keep a close eye on them, I wouldn't do any heavy track work with those. Couple of links:

https://ebcbrakes.com/articles/surfa...n-brake-discs/
https://mechanics.stackexchange.com/...st-be-replaced