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Centric C-TEK 121 Economy Rotors #4893331
10/10/18 07:38 PM
10/10/18 07:38 PM
Joined: Aug 2004
Posts: 20,835
CA
The Critic Offline OP
The Critic  Offline OP

Joined: Aug 2004
Posts: 20,835
CA
I posted about this in the humor section for a different reason, but the Centric 121 C-TEK economy rotors are Centric's equivalent to the infamous "whitebox" economy rotors that are sold by many parts stores.

Normally I do not use whitebox economy rotors, however, this brake job was for a lease return and the driver wanted to minimize their costs. The driver did not mind the rusty appearance from unpainted rotors.

This was the first set of economy rotors that I had used in over two years. After properly cleaning the hub flanges, washing the rotors and installing them with conical washers, I measured the lateral runout values and found the following:

L/F = .001"
R/F = .0015" (after indexing, first try yielded .0025")
L/R = .0005"
R/R = .002"

This particular vehicle (2016 Outback 3.6R) allows a max of .002" so all of the values were within spec. From my past experience, economy rotors typically have .003"-.004" of runout and this was simply too much for most modern vehicles. Resurfacing rotors on a bench lathe usually results in .004"-.007" of runout.

Either I got lucky, or I guess economy rotors have gotten a lot better in the last few years. I was a bit blown away. If economy rotors are consistently this good and the driver is on a budget (can't afford or does not want to pay for premium rotors), then economy rotors have truly become a viable low-cost alternative to resurfacing your old brake rotors. The finish felt reasonably smooth as well, and the pads bedded in fairly quickly. I paired these rotors with Akebono ProACT pads on the front axle and Centric 105 PosiQuiet Ceramic pads on the rear axle.

Also, nthach came by and watched me do this brake job. He's cool.

Rear.jpgFront.jpg

2011 Toyota Prius 1.8L - 190K - Idemitsu ZEPRO Adv. Moly 0W-20
2007 Honda Accord 2.4 - 137K - Mobil 1 EP HM 5W-30
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4893345
10/10/18 08:02 PM
10/10/18 08:02 PM
Joined: May 2009
Posts: 887
Hawaii, USA
anndel Offline
anndel  Offline

Joined: May 2009
Posts: 887
Hawaii, USA
Good enough!


1993 Toyota 4x4 p/u, 2.4L 22RE 4 cyl - M1 EP 10W-30, Fram UG Filter
2005 Toyota Avalon XL, 3.5L V6, Amsoil XL 5W-30, Amsoil Filter
2014 Toyota Tacoma 4.0L V6, Amsoil SS 5W-30, Yota OEM Filter
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4893365
10/10/18 08:27 PM
10/10/18 08:27 PM
Joined: Sep 2002
Posts: 3,657
Arkansastan
Propflux01 Offline
Propflux01  Offline

Joined: Sep 2002
Posts: 3,657
Arkansastan
And I think you will like those Akebono pads. I am impressed withe 40K I have on mine so far.


2014 Hyundai Elantra
2014 Hyundai Elantra GT

A 55 Gallon Drum And A Shovel Can Solve A lot of Life's Little "Problems"
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4893375
10/10/18 08:33 PM
10/10/18 08:33 PM
Joined: Jul 2016
Posts: 1,918
Jacksonville, FL
FlyNavyP3 Offline
FlyNavyP3  Offline

Joined: Jul 2016
Posts: 1,918
Jacksonville, FL
On a lease return I would've been tempted to put the cheapest pads known to man on that Subaru. You're a better man than me. Nice work and excellent run out numbers for budget parts!


Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander
Re: Centric C-TEK 121 Economy Rotors [Re: FlyNavyP3] #4893396
10/10/18 09:02 PM
10/10/18 09:02 PM
Joined: Aug 2004
Posts: 20,835
CA
The Critic Offline OP
The Critic  Offline OP

Joined: Aug 2004
Posts: 20,835
CA
Originally Posted by Propflux01
And I think you will like those Akebono pads. I am impressed withe 40K I have on mine so far.

The car is getting returned in Dec.

Originally Posted by FlyNavyP3
On a lease return I would've been tempted to put the cheapest pads known to man on that Subaru. You're a better man than me. Nice work and excellent run out numbers for budget parts!

Thanks.


2011 Toyota Prius 1.8L - 190K - Idemitsu ZEPRO Adv. Moly 0W-20
2007 Honda Accord 2.4 - 137K - Mobil 1 EP HM 5W-30
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4893405
10/10/18 09:15 PM
10/10/18 09:15 PM
Joined: Feb 2009
Posts: 17,545
Michigan
daves87rs Offline
daves87rs  Offline

Joined: Feb 2009
Posts: 17,545
Michigan
Very nice!!!


2019 Chevrolet Equinox LS
2006 Chevrolet Cobalt LS
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4893561
10/11/18 04:00 AM
10/11/18 04:00 AM
Joined: May 2005
Posts: 11,412
ROCHESTER, NY
Char Baby Offline
Char Baby  Offline

Joined: May 2005
Posts: 11,412
ROCHESTER, NY
I have used C-TEK rotors(and pads) with good success. I have also use DURAGO rotors as well with the same success. But, this success is also based on the vehicle that they're being installed on. In other words, I had good success with them on a lower end MAZDA and mid level NISSAN. However, I've had even better success with them on a LEXUS. So, it depends on the car & rotor manufacturers spec of the rotors, is how well you'll do with them.


"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: Centric C-TEK 121 Economy Rotors [Re: FlyNavyP3] #4893666
10/11/18 08:15 AM
10/11/18 08:15 AM
Joined: Apr 2017
Posts: 1,875
Ohio
hallstevenson Offline
hallstevenson  Offline

Joined: Apr 2017
Posts: 1,875
Ohio
Originally Posted by FlyNavyP3
On a lease return I would've been tempted to put the cheapest pads known to man on that Subaru. You're a better man than me. Nice work and excellent run out numbers for budget parts!
I was thinking the same thing. It's not to be cheap or a sh***y person either, it's just not necessary for someone returning a leased vehicle to do at the end of a lease.

Re: Centric C-TEK 121 Economy Rotors [Re: hallstevenson] #4894377
10/12/18 01:35 AM
10/12/18 01:35 AM
Joined: Aug 2004
Posts: 20,835
CA
The Critic Offline OP
The Critic  Offline OP

Joined: Aug 2004
Posts: 20,835
CA
Originally Posted by hallstevenson
Originally Posted by FlyNavyP3
On a lease return I would've been tempted to put the cheapest pads known to man on that Subaru. You're a better man than me. Nice work and excellent run out numbers for budget parts!
I was thinking the same thing. It's not to be cheap or a sh***y person either, it's just not necessary for someone returning a leased vehicle to do at the end of a lease.

Sure, I understand where you are coming from. But I also will not put my name on a substandard brake job. The owner would have preferred to not do the brakes at all, but the rears were grinding and the fronts were at 1mm.


2011 Toyota Prius 1.8L - 190K - Idemitsu ZEPRO Adv. Moly 0W-20
2007 Honda Accord 2.4 - 137K - Mobil 1 EP HM 5W-30
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4894507
10/12/18 08:55 AM
10/12/18 08:55 AM
Joined: Apr 2017
Posts: 1,875
Ohio
hallstevenson Offline
hallstevenson  Offline

Joined: Apr 2017
Posts: 1,875
Ohio
How did you get involved ? Was this a friend's car that you did in your garage or driveway or do you have a repair shop ? If you use parts specified by the customer and do a proper, quality brake job, I wouldn't consider it "substandard" in any way.

Re: Centric C-TEK 121 Economy Rotors [Re: Char Baby] #4896654
10/14/18 10:40 PM
10/14/18 10:40 PM
Joined: May 2010
Posts: 10,196
out there
spasm3 Offline
spasm3  Offline

Joined: May 2010
Posts: 10,196
out there
Originally Posted by Char Baby
I I have also use DURAGO rotors as well with the same success.



Glad to hear that! I just ordered some DURAGO coated rotors from RA for the hyundai. Going with the centric stoptech street pads 308.15430.

Will see how they do.


13 elantra 75k 5w30 QSUD
03 chevy avalanche 80k synpwr 5w30
17 mazda cx-5 9500 miles m1 0w30
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4896659
10/14/18 10:59 PM
10/14/18 10:59 PM
Joined: Mar 2008
Posts: 8,421
USA
slacktide_bitog Offline
slacktide_bitog  Offline

Joined: Mar 2008
Posts: 8,421
USA
Basically the same as Centric Premium but without the coating.

The C-Tek will probably be ok for awhile since you're lucky enough to not have rust (on the east coast, non-coated rotors rust overnight), but they are NOT usable anywhere up north where you get rust.

Re: Centric C-TEK 121 Economy Rotors [Re: slacktide_bitog] #4901208
10/20/18 02:30 PM
10/20/18 02:30 PM
Joined: Aug 2013
Posts: 3,406
Central Maryland
HangFire Offline
HangFire  Offline

Joined: Aug 2013
Posts: 3,406
Central Maryland
Originally Posted by The Critic
This particular vehicle (2016 Outback 3.6R) allows a max of .002" so all of the values were within spec. From my past experience, economy rotors typically have .003"-.004" of runout and this was simply too much for most modern vehicles. Resurfacing rotors on a bench lathe usually results in .004"-.007" of runout.

Ouch. There is a local race-oriented machine shop that does much better than that. But your average brake and muffler shop, yeah, I can believe that.
Originally Posted by The Critic

Either I got lucky, or I guess economy rotors have gotten a lot better in the last few years. I was a bit blown away. If economy rotors are consistently this good and the driver is on a budget (can't afford or does not want to pay for premium rotors), then economy rotors have truly become a viable low-cost alternative to resurfacing your old brake rotors.

I'm sure I've opined on here before, that if new rotors pass parallelism (usually) and runout (sometimes) tests, then good enough is good enough. Rust is another issue. C-Tek is usually within the spec that you can find on the RockAuto site. I have a set of Centric C-Tek's on my Corolla, that are at 4 years 2 months and 76K miles and doing fine. The pads are about done, though, I just bought their replacements, and plan to put them on this coming week.
Originally Posted by slacktide_bitog
The C-Tek will probably be ok for awhile since you're lucky enough to not have rust (on the east coast, non-coated rotors rust overnight), but they are NOT usable anywhere up north where you get rust.

Surface rust on the friction surfaces happens on coated rotors overnight as well, because the coating is toast on break-in, and it's just as harmless on coated as it is on uncoated rotors.

It's the rust from the edges and ventilated back side eating its way through that is the hazard. My experience in heavily salted Maryland (we may not have all of the snow, but due to Winter-long freeze/thaw cycles, we have all of the salt) is that coated rotors give you one more year before this happens, but it still takes 4-6 years. If you are putting 20K+ a year (as we do) on your vehicle, you'll get your money's worth out of an uncoated rotor (60-80K miles). If you drive 10K or less a year, or just prefer a nicer appearance, a coated rotor is a worthy upgrade.


Various musings: http://hangfire.net
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4902106
10/21/18 03:22 PM
10/21/18 03:22 PM
Joined: Aug 2004
Posts: 20,835
CA
The Critic Offline OP
The Critic  Offline OP

Joined: Aug 2004
Posts: 20,835
CA
Apparently, the owner decided to return the car early and the car is now being marketed as a CPO unit on the dealer’s lot.

I am curious if the dealer had to re-do the brakes before sale since they were not OEM Subaru.


2011 Toyota Prius 1.8L - 190K - Idemitsu ZEPRO Adv. Moly 0W-20
2007 Honda Accord 2.4 - 137K - Mobil 1 EP HM 5W-30
Re: Centric C-TEK 121 Economy Rotors [Re: The Critic] #4902151
10/21/18 04:09 PM
10/21/18 04:09 PM
Joined: Jan 2008
Posts: 11,399
OH
SatinSilver Offline
SatinSilver  Offline

Joined: Jan 2008
Posts: 11,399
OH
Originally Posted by The Critic
Apparently, the owner decided to return the car early and the car is now being marketed as a CPO unit on the dealer’s lot.

I am curious if the dealer had to re-do the brakes before sale since they were not OEM Subaru.


If the dealer links a Carfax report to the car it may show whether they did a new brake job to it or not. My guess would be they left it as-is.

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