RB Racing Brakes

335dM · 05-14-2015, 05:59 PM

So i have a problem with my 2 piece rotors and RB Racing Brake are kind enough to send me a new set of rings ( brake rotors 2 pieces) they dont have the rings right now in stock and they have some 32mm thick rotors. Original have 30mm.
They asked me to check the clearance in between the pistons and the rotor to see if it would clear. Is anyone knows if it would fit?

The HACK · 05-14-2015, 06:08 PM

If your pads are brand new, it will be tight (and probably not clear). If your pads are old-er, then yes they'll likely fit. For now.

It'll depend on quite a few factors, actually. I had a set of track pads that the manufacturers swore would fit fine, only to find that it's like 1/10th of a mm to thick, and no matter how hard I hammer away at it, it wouldn't fit over the OEM rotors.

There's really no way to tell, to be honest. You'll need to fit it to know it.

Nice of them to send you new replacement rings though, those ain't cheap.

335dM · 05-14-2015, 06:53 PM

Can anyone measure the inside length in between the 2 pistons fully retracted of a e90 335?
For those of you having a calliper laying around...

feuer · 05-14-2015, 07:06 PM

I agree with the HACK, if you are reusing the old pads it would probably fit.

335dM · 05-14-2015, 08:33 PM

Quote:

Originally Posted by feuer

I agree with the HACK, if you are reusing the old pads it would probably fit.

Yeah but i'm installing new pads as well

Cloud9blue · 05-14-2015, 09:08 PM

2mm is most likely too much. I remember there is barely a mm of clearance with new pads and new stock style rotors. And that's with fully retracted pistons.

feuer · 05-15-2015, 03:18 PM

Quote:

Originally Posted by 335dM

Yeah but i'm installing new pads as well

you can always sand down the pads a bit. I know it sound crazy but is nothing new. I have done it few times actually.
http://www.motorsport.com/grandam/ph...sanding-brake/

05-14-2015, 05:59 PM	#1
335dM Major 130 Rep 1,362 Posts Drives: 335d m package Join Date: May 2011 Location: montreal iTrader: (0)	RB Racing Brakes So i have a problem with my 2 piece rotors and RB Racing Brake are kind enough to send me a new set of rings ( brake rotors 2 pieces) they dont have the rings right now in stock and they have some 32mm thick rotors. Original have 30mm. They asked me to check the clearance in between the pistons and the rotor to see if it would clear. Is anyone knows if it would fit?
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05-14-2015, 06:08 PM	#2
The HACK Midlife Crises Racing Silent but Deadly Class 1821 Rep 5,337 Posts Drives: 2006 MZ4C, 2021 Tesla Model 3 Join Date: Oct 2007 Location: Welcome to Jamaica have a nice day iTrader: (1)	If your pads are brand new, it will be tight (and probably not clear). If your pads are old-er, then yes they'll likely fit. For now. It'll depend on quite a few factors, actually. I had a set of track pads that the manufacturers swore would fit fine, only to find that it's like 1/10th of a mm to thick, and no matter how hard I hammer away at it, it wouldn't fit over the OEM rotors. There's really no way to tell, to be honest. You'll need to fit it to know it. Nice of them to send you new replacement rings though, those ain't cheap. __________________ Sitting on a beat-up office chair in front of a 5 year old computer in a basement floor, sipping on stale coffee watching a bunch of meaningless numbers scrolling aimlessly on a dimly lit 19” monitor.
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05-14-2015, 06:53 PM	#3
335dM Major 130 Rep 1,362 Posts Drives: 335d m package Join Date: May 2011 Location: montreal iTrader: (0)	Can anyone measure the inside length in between the 2 pistons fully retracted of a e90 335? For those of you having a calliper laying around...
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05-14-2015, 07:06 PM	#4
feuer Major General 4277 Rep 9,209 Posts Drives: wife crazy! Join Date: Apr 2015 Location: Chicago, IL iTrader: (5)	I agree with the HACK, if you are reusing the old pads it would probably fit.
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05-14-2015, 09:08 PM	#6
Cloud9blue Brigadier General 714 Rep 3,251 Posts Drives: around the potholes Join Date: Aug 2008 Location: NY/NJ/MA iTrader: (13)	2mm is most likely too much. I remember there is barely a mm of clearance with new pads and new stock style rotors. And that's with fully retracted pistons.
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