ericshun

so while having the racing brake two-piece rotors installed today we find out that the rotor is much thicker than the OE rotor.


I'm not sure how many miles there are on the stock rotor, but there's usually still an outer lip which hasn't completely worn away on the OEM rotor which would give me an idea of how thick the rotor was originally. I don't think the OE rotor has been worn down that much but the racing brake rotor looks MUCH thicker. This wouldn't be a problem if I was able to fit my XP12 pads on over them.

Has anyone else had this issue? It looks like the problem lies within the rotor being thicker rather than the new pads. I had to use the OE pads which were a bit worn and then it was a tight fit. Does anyone have a suggestion how I can remedy this? Will I need to shave the pads? I'm going to a track even this weekend and my thoughts are I need to get some used track pads? Where can I even get my pads shaved and does it make sense that I would need to do this?

psychoazn

I would say just use your OEM rotors for now, and after a day, the pads should wear enough to fit.

In the meantime, I would email RB...

How's the CR?

//steve\\

You sure those aren't the rotors that require you to use the accord calipers?

josh7owens

That would be my guess also. I would guess they just sent him the wrong ones.

Ps- how much lighter are the racebrake ones over stock

ericshun

I was thinking this too. I double checked my receipt to make sure I ordered the right ones. I'll see if there's a part # or something on the box. RB emailed me back and i'm trying to figure this out with them. Never heard anyone else have this problem before.

Not sure how much lighter they are. Never weighed them but i'm sure the info is on here somewhere.

robrob

Most likely those rotors are the thicker rotors for the Accord caliper "BBK." I used XP12s (one set) with the RacingBrake rotors for the stock S2000 calipers and had zero fitment problems.

hondaf1

Measure the thickness of the RB rotor. Stock replacement should be 25mm and the one for accord caliper setup should be 28mm.

ericshun

Is the pad sweep area also larger? It does look like about 3mm difference so this is looking like the issue. I checked the box the rotors came in and it has the correct part number though. I will give RB a call later so if this was the problem I can get the correct set sent over ASAP to use this Saturday.

Forcednduckshn

Sorry, but I just need to tell you, your forum name is HILARIOUS

LOL...

hondaf1

Are the new xp12 pads the same thickness as new oem pads. I know you can get carbotech pads with custom thickness.