Stop techs

fdagen · 08-06-2016, 10:34 AM

I have a line on front and rear stop techs for $2200. Would you do it? They look ok visually but not sure if they may need to be rebuilt.

inTgr8r · 08-06-2016, 04:55 PM

Not enough information...
How many miles on them, what are the rotors like.
What is the condition of the piston seals
Etc.

fdagen · 08-06-2016, 06:03 PM

All I know is it's a st40 355 kit. There is a pic of the calipers and rotors and they look ok. But it isn't a high red pic. I do not know how long they were on the car. Another forum member mention to get the rotor thickness measurement. Because replacing the rotors could be a significant cost.

fdagen · 08-08-2016, 06:23 PM

Ok so the plot thickens. I received rotor measurements. Two of the rotors are 50% worn the other two are 75% (assuming fronts). Assuming the calipers and pads are good, would you do it? This would be street use, not sure when I would expect to replace the rotors? I guess if the rotors are the same size I could move the fronts to the rear to get more life. I would guess I put 500 miles on a year.

inTgr8r · 08-08-2016, 07:57 PM

Did you get actual measurements?
Are the percentages accurate?

If they represent percent of usable disc (Max - min) then you should be OK with the low miles that you do.

To swap f/r you would have the dismantle the ring from the rotor hat.
The rears are different hats/hub with the parking brake.
That assumes that the rings are the same part. (Im not sure if they are or not)

tominizer · 08-09-2016, 12:34 PM

^What he said.

IMHO, unless the seller is really disclosing the details and forthcoming with the information in a manner that they sound like they know what they are talking about and understand how buying used things work, be skeptical and very careful.

Cyclops · 08-10-2016, 10:28 PM

I'd be interested in the rears if you don't pick them up.

08-06-2016, 10:34 AM	#1
fdagen First Lieutenant 25 Rep 350 Posts Drives: 2006 Z4M Roadster Join Date: Apr 2012 Location: USA iTrader: (2)	Stoptech advice needed I have a line on front and rear stop techs for $2200. Would you do it? They look ok visually but not sure if they may need to be rebuilt.
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08-06-2016, 04:55 PM	#2
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	Not enough information... How many miles on them, what are the rotors like. What is the condition of the piston seals Etc. __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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08-06-2016, 06:03 PM	#3
fdagen First Lieutenant 25 Rep 350 Posts Drives: 2006 Z4M Roadster Join Date: Apr 2012 Location: USA iTrader: (2)	All I know is it's a st40 355 kit. There is a pic of the calipers and rotors and they look ok. But it isn't a high red pic. I do not know how long they were on the car. Another forum member mention to get the rotor thickness measurement. Because replacing the rotors could be a significant cost.
	Appreciate 0 Quote

08-08-2016, 06:23 PM	#4
fdagen First Lieutenant 25 Rep 350 Posts Drives: 2006 Z4M Roadster Join Date: Apr 2012 Location: USA iTrader: (2)	Ok so the plot thickens. I received rotor measurements. Two of the rotors are 50% worn the other two are 75% (assuming fronts). Assuming the calipers and pads are good, would you do it? This would be street use, not sure when I would expect to replace the rotors? I guess if the rotors are the same size I could move the fronts to the rear to get more life. I would guess I put 500 miles on a year.
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08-08-2016, 07:57 PM	#5
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	Did you get actual measurements? Are the percentages accurate? If they represent percent of usable disc (Max - min) then you should be OK with the low miles that you do. To swap f/r you would have the dismantle the ring from the rotor hat. The rears are different hats/hub with the parking brake. That assumes that the rings are the same part. (Im not sure if they are or not) __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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08-09-2016, 12:34 PM	#6
tominizer Lieutenant 98 Rep 500 Posts Drives: 2007 Z4M Roadster Join Date: May 2016 Location: Toronto iTrader: (1)	^What he said. IMHO, unless the seller is really disclosing the details and forthcoming with the information in a manner that they sound like they know what they are talking about and understand how buying used things work, be skeptical and very careful.
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08-10-2016, 10:28 PM	#7
Cyclops Major 1473 Rep 1,483 Posts Drives: 09 E91 328i & 07 E86 M Join Date: Nov 2007 Location: Milton iTrader: (4) Garage List 2009 E91 328xi M Tech [10.00] 2007 E86 Z4M Coupe [8.67]	I'd be interested in the rears if you don't pick them up. __________________ 2007 #1432 ///M Coupe Silver Gray - KW V3 Coilovers - AFE Intake - Strong-Strut Brace - Status Grupee Headers - Super Sprint Race Exhaust & Xpipe - 19" Avant Garde M359 - Stoptech 380 6 pot BBK - EPIC Motorsports Tuning ////////////2009 328xi M-Tech E91 manual 6spd - Instagram ->@e91kiter
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