How long can you run your rotors below thickness?

ThatRWD · 08-12-2016, 11:21 PM

For those of you who have run your rotors after they reached their minimum thickness, how long were you able to run in them (for how many more mm)? And how hard did you brake during this time?

Boland01 · 08-13-2016, 08:16 AM

I wouldn't recommend running the rotors below minimum spec. The chance of a rotor stress cracking and failing goes up and it would happen at the worst time. Rotors aren't that expensive or hard to change out.

If you do have to run them for a while I'd go easy on the brakes where possible.

Fundguy1 · 08-13-2016, 08:27 AM

Get Stoptech or other substitute. No reason for expensive oem or running thin rotors.

Bamaben · 08-13-2016, 03:57 PM

I'm sure I've run mine below min thickness. Id just replace them when you need new pads. No need to replace them before then unless they're WAY below min

tlow98 · 08-14-2016, 01:30 AM

Realistically you can run them well under minimum if you're just gently driving on the street. If you're tracking, certainly not recommended.

08-12-2016, 11:21 PM	#1
ThatRWD Major 109 Rep 1,062 Posts Drives: 335i Join Date: Mar 2014 Location: Northern VA iTrader: (0)	How long can you run your rotors below thickness? For those of you who have run your rotors after they reached their minimum thickness, how long were you able to run in them (for how many more mm)? And how hard did you brake during this time? __________________ Sideways is the way of life.
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08-13-2016, 08:16 AM	#2
Boland01 Lieutenant 151 Rep 460 Posts Drives: 2010 535ix, 2008, 2007 335i Join Date: Sep 2013 Location: Magnolia, TX iTrader: (0)	I wouldn't recommend running the rotors below minimum spec. The chance of a rotor stress cracking and failing goes up and it would happen at the worst time. Rotors aren't that expensive or hard to change out. If you do have to run them for a while I'd go easy on the brakes where possible.
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08-13-2016, 08:27 AM	#3
Fundguy1 Major General 2033 Rep 8,339 Posts Drives: 335 e93 Join Date: Aug 2014 Location: Orlando, fl iTrader: (0)	Get Stoptech or other substitute. No reason for expensive oem or running thin rotors.
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08-13-2016, 03:57 PM	#4
Bamaben Major 183 Rep 1,082 Posts Drives: 07 335i blk/blk/alum 6MT Join Date: Jun 2010 Location: Bimmertown iTrader: (0)	I'm sure I've run mine below min thickness. Id just replace them when you need new pads. No need to replace them before then unless they're WAY below min __________________ It takes a big man to cry. It takes an even bigger man to laugh at him-- Jack Handey mods: blackout grill, finishing rods, badges, Blacklines.
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08-14-2016, 01:30 AM	#5
tlow98 Major General 2191 Rep 5,013 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	Realistically you can run them well under minimum if you're just gently driving on the street. If you're tracking, certainly not recommended.
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