willy9

Hello guys, hope you all are doing good, ok here is the deal, I recently bought rotors and pads from brakemotive, they have been on the car for maybe 500 miles and the driver side front rotor has a couple of black spots what could it be?
Thanks in advance.

LS1121

iTrader: (17)

These guy's need pictures.

ramairetransam

iTrader: (18)

melanoma

BMR Tech2

iTrader: (5)

Hello there! Sounds like a rotor "hot spot" to me. Not uncommon on a set of rotors that weren't properly bedded in, or from extreme use. Unfortunately, the damage is done. This accumulation of pad materiel on the rotor surface alters the metal composition underneath so even if you resurfaced the rotor, the hot spots would be back. You'll probably notice a pulsation in braking because of this. It's commonly referred to as "warped rotors" which is a misnomer or what's actually going on. No safety precautions, so rest easy. Just keep an eye on them and don't let it go too far.

- Kevin

willy9

Here is a picture of it.

trevmust

what is a general break in procedure? 4-5 60-0 stops then 100-0? not slam on the brake stops either, just normal braking.

BMR Tech2

iTrader: (5)

That's what those are. Rotor hot spots. You should be OK, but I wouldn't be surprised if you begin to feel it through the pedal under braking or they grow larger over time.

willy9

Do you think they are cover under warranty for hotspots?

BMR Tech2

iTrader: (5)

I don't know. Typically they won't be covered under warranty, but you'll need to speak with who you bought them from.

willy9

Ok thanks, hey do you have LCA and adjustable PHB packages? Im planing on gettin some real soon and sam strano only has UMI, Im sure both are great products but I want to compare prices.

SparkyJJO

iTrader: (11)

They have the break-in procedure in a document somewhere (I think I had it included in the box they shipped mine in). You do not come to a complete stop when doing it. IIRC it is something like 3 heavy braking from 60-10, in rapid succession, then 3 moderate from 35-5 then just drive a bit to let them cool for a min or two. you don't want to come to a stop right away.

If you did it the way you mentioned that definitely could have been the cause of the hot spots.

willy9

I did it like you mention, I saw it on their own thread I never came to a complete stop and I wasnt braking hard just moderate

216StealthSS

i braked severely on mine did the proper "break-in" and i got hot spots on the outer edges of my rotors, i have the same as you. i can feel a little bit of the warped rotors in very light braking... nowhere else though. mine are still stoppin on the dime and give ya 9 cents o' change, rubberballs on the backs of my shoes settin my pants on fire

libertyforall1776

iTrader: (2)

Are they really "hot spots", or are they an indication of poor grade metallurgy?!

Cheap quality made in China metal?

LS1121

iTrader: (17)

^^ i was wondering also. I bought cheap **** $125 for all 4 shipped and I have them for maybe 2 years with no issues. Just slapped them on and started jammin. No more warped rotors.

216StealthSS

Still better than buying auto zone or equiv. "factory style" rotors... still made in china. and are far worse for performance. i can tell you first hand, they are night and day from "stock" and way cheaper than what you would pay in a store guaranteed!

fine a made in U.S.A. rotor and let me know....

LS1121

iTrader: (17)

Find a Made in USA anything let me know. lol

216StealthSS

right!? haha.. im in the parts business, i can almost guarantee that you will never find a USA Made rotor sadly...

SparkyJJO

iTrader: (11)

Yeah pretty much. If there was a made in USA set of brakes that was also good quality well then I'd be more apt to get those. But when they're all made in China, well... Brakemotive has a good track record, possible they had a bad batch maybe? Dunno. I've had no issues with any of their brakes so far, neither has my boss and he is really hard on stuff lol.

1quickTransAm

iTrader: (4)

Mine had bad spots too. I followed their break in procedure exactly. They sent me new rotors under warranty. Have yet to install the new ones yet to see if they repeat the issue.