How much rotor is enough?

dev_null · 10-08-2022, 01:56 PM

I have 2 tack days coming up this week and it looks like fcp euro sent me 2 rear left rotors. Current rotor thickness on the rears is abou 23.3 mm. Min thickness is 22.4. How fast does that last millimeter wear on the track with track pad? I'm assuming I need to go get a rotor from the dealer but though I'd get some opinions first.

Gossypiboma · 10-08-2022, 02:00 PM

You'll be fine for 2 track days.

kolosy · 10-10-2022, 11:35 AM

rears are 24mm thick to start, so you're closer to the beginning than the end, fwiw.

10-08-2022, 01:56 PM	#1
dev_null New Member 14 Rep 17 Posts Drives: E90 M3 Join Date: Jul 2019 Location: nv iTrader: (0)	How much rotor is enough? I have 2 tack days coming up this week and it looks like fcp euro sent me 2 rear left rotors. Current rotor thickness on the rears is abou 23.3 mm. Min thickness is 22.4. How fast does that last millimeter wear on the track with track pad? I'm assuming I need to go get a rotor from the dealer but though I'd get some opinions first.
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10-08-2022, 02:00 PM	#2
Gossypiboma Major 542 Rep 1,195 Posts Drives: 13' M3 6MT 18' M3 CS Join Date: Aug 2012 Location: The John iTrader: (8)	You'll be fine for 2 track days. __________________
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10-10-2022, 11:35 AM	#3
kolosy Colonel 1548 Rep 2,071 Posts Drives: over potholes Join Date: Dec 2008 Location: Chicago iTrader: (2)	rears are 24mm thick to start, so you're closer to the beginning than the end, fwiw. __________________ Current '21 DG X5MC, '22 X5M50i, '11 E90 M3 Recent Past '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3 I think I have an M3 problem.
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