EBR Racing Rotor

[Dingo]

[down]

went for a Ride today with the new EBR Racing Front Disc...was not very happy with it...no hard braking possible!!! does anyone know what these marks mean??
under hard braking, Brak begins to pulse and making strange noise....
Floaters are working fine all right installed, have EBC HH brake pads...

 

[stensg]

Did you clean the rotor first?

 

[snrusnak]

Don't know but something is obviously wrong. I don't know what would cause it to pulsate like that and cause those marks. This is only when the brake is applied, correct?(i.e. the pads are not dragging heavily).

I'd talk to EBR first, but if that fails I'd hit the rotor with an orbital sander to resurface it then check for issues with the caliper and pads. I have reconditioned my rotors with an orbital it works great if you don't sit in one area long, keep moving. Some people say not to do this but it worked VERY well for me. And of course check to make sure you keep the rotor within spec(don't sand too much off).

 

[konarider94]

Omg jobe is back....jk snrusnak

Looks like you didn't get the new hardware dingo. I wonder if that had anything to do with it

 

[snrusnak]

Omg jobe is back....jk snrusnak

This went right over my head lol. I do drink a lot....

 

[Dingo]

Rotor is brandnew..first ride..!! Regular Floater Kit installed.....


EBR Says:

This rotor works with the stock rotor mounting pieces, or with the Erik Buell Racing Rotor Mounting Kit CQ0001.11AZ.

 

[raz65man]

Is the rotor solid or does it have cooling holes from the ID to the OD? Dark marks are definitely heat build-up, like the material is too thin. That is why I asked about the cooling holes, dark spots are awfully evenly spaced. Just a thought....[confused]
I will be watching this, I planned on getting this rotor for my bike this winter. Having second thoughts now.
Raz

 

[onelogue]

I havethis rotor sitting in the garage til im ready to put it on. Now Im nervous!...... Hope EBR has an answer for you. Those are bad marks.

 

[50dro]

Did you clean the rotor first?

What he said! Most new rotors are coated with oil to preserve them. Gotta clean that off first! Let us know...

 

[snrusnak]

now that was funny.....

I still don't get it [down]

why does jobe seem so familiar to me....?

I have a feeling I'm making myself look like an idiot LOL

 

[Dingo]

yes, I cleaned the rotor first...

 

[freak2180]

did you properly bed the pads and rotor before hammering the **** out of them? properly doing this requires several heating and cooling cycles. dosent look like it was done to me.

 

[BKKBuell]

A possible reason are old brake pads.... try it with new ones. Honestly this kind of (stottern --> thats German as I dont know the english term) should not happen on EBR parts. My 2nd rotor was from Braking and they advised to run in with new pads.... hope u overcome this issue

 

[BDcityX]

I used to do a lot of track days (car, not bike)… I had performance brakes and discs and after one weekend I had something similar on my discs, although not as regular a pattern as yours.
Don’t know what your brakes are like now, but when I used mine afterwards, I found that when I applied a little pressure the brakes made a bit of a grinding noise, but if I stamped a little harder the noise stopped. I didn’t notice much difference in performance

I was told that I had glazed my discs and it was from pushing them too hard without letting them come up to temperature first. Mine were eventually replaced, but I was told that I could use very fine grade emery paper/water paper to clean them and it would bring them back to normal. Snrusnak suggested an orbital sander… he’s braver than me, I would just do it manually

Before you do anything though I would still want to talk to EBR or at least a brake disc/pad expert to get their input

 

[firefighter1c57]

I've never been a fan of axle sliders with external hardware like yours. In a low side, head of the bolts can be damaged to the point they don't come out. Seen it on plastics on Ninjas, and on skid plate hardware on Jeeps. Juss sayn.

Back to the brakes, I have no idea. I have a EBR rotor and mine wore nothing like that.

 

[Dingo]

check this..must be the Disc...[down] crap!!

 

[konarider94]

wow thats crazy. pretty solid evidence right there. have you emailed or called ebr yet?

 

[snrusnak]

I just wonder if that was like that originally. Or if it's the rotor at all. I can't imagine you wouldn't have noticed that when you installed it (the wavy/uneven surface). Not saying it's not the rotor and it's your fault, just wondering if something caused that.

 

[konarider94]

I can't imagine you wouldn't have noticed that when you installed it (the wavy/uneven surface).

no way you could notice that, the magnitude from the high to low spot is going to be on the order of a thousandth of an inch. id be shocked if it was even .002"

 

[snrusnak]

Maybe so.....I just figure you'd feel it if you ran your finger over it. Maybe not though.