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Brumbear
Posted on Monday, June 23, 2014 - 07:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Can I have my rotor (front) cut on the lathe to take out high spots and resurfaced?
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Sprintst
Posted on Monday, June 23, 2014 - 07:35 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Any rotor is better done on a blanchard grinder


However, I'm guessing you can just get a drill mounted hone and DIY to accomplish your goal
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Sir_wadsalot
Posted on Monday, June 23, 2014 - 08:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You sure it has high spots? Usually it's just the pads....
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Oldog
Posted on Monday, June 23, 2014 - 08:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I second the blanchard grinder
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Terrys1980
Posted on Monday, June 23, 2014 - 09:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You sure it's not just deposits left from the pads? If so a rotor hone with a drill would do the trick.
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Two_seasons
Posted on Monday, June 23, 2014 - 11:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

try steel wool to clean up the rotor

(Message edited by two_seasons on June 23, 2014)
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Brumbear
Posted on Monday, June 23, 2014 - 05:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Pads are fine they are new , rotor surface is fine it's worn quite q bit but it's fine, I am gonna check the springs and shyt when I pull it but thanks for the input. And thanks for the blanchard info, I have a lathe at my disposal so I was gonna use that but I was given the name of a guy in NJ who still does it has a grinder so I will get it done from him if it can be done that is I was more looking for the maximum thiness I can cut it and still be ok. I don't ride like I used to but I aint parking lot Annie either so i want to be safe if possible.
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Nuts4mc
Posted on Monday, June 23, 2014 - 05:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

if you can afford it...add the EBR disk mounting hardware ($50)...very good upgrade for the money...
http://www.erikbuellracing.com/store/parts-accesso ries/brakes/front-brake-rotor-mounting-kit.html
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D_adams
Posted on Monday, June 23, 2014 - 05:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I think you'd be better served by checking the rim itself at the mount points and possibly shim the rotor to make it true. I've heard of a fairly large amount of runout on some rims, .050" or more and it's certainly enough to feel through the brake lever.

If memory serves me correctly, that's pretty much the lateral and radial runout limit, even 1/2 that can be felt under hard braking.
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Jdugger
Posted on Monday, June 23, 2014 - 11:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It's not unusual to need to have front wheels machined back to "true" in order to use the EBR brake hardware.

The OEM Buell wheels are not high quality.
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Buell3some
Posted on Thursday, June 26, 2014 - 12:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I like many had the front brake rotor pulsation. I tried the EBR hardware, new EBC HH pads, and removed the stock rotor to give it a thorough cleaning on both sides. After re-assembly it was better but still had pulsation. I didnt want to pay EBR's ridiculously "inflated" $340 price tag so i ordered an EBC brake rotor part# MD735RS from my favorite local independent bike shop. It took some time to get because it was backordered but now the pulsation is GONE and the rotor cost me $185.00 + tax= $200 total!
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Noobuel
Posted on Thursday, June 26, 2014 - 01:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sweet, thanks for the reference. I will likely be headed that route after I recover from the funds I had to split with for the water pump replacement.
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Rodrob
Posted on Thursday, June 26, 2014 - 03:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm having pulsing issues as well on my street 1125R with the EBR Rotor and Hardware. Runout on my wheel is in spec, the height of the rotor mounting points vary between -.008" and +.003" for a total of .011 runout. Does this seem excessive?
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Nobuell
Posted on Thursday, June 26, 2014 - 05:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That seems high to me. It probably is not a problem with the Buell original flexible mounting. Does the EBR kit lock the disc directly to the wheel with no movement? I was thinking about getting their hardware kit for my track bike.
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Rodrob
Posted on Thursday, June 26, 2014 - 06:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

According to EBR, this is excessive. The EBR hardware pretty much eliminates the float.
Looking for shims on McMaster. Thanks Jdugger.
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Jdugger
Posted on Thursday, June 26, 2014 - 08:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Rob,

Don't underestimate the value of machining the tabs on the wheel.
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Rodrob
Posted on Thursday, June 26, 2014 - 10:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm sure that's the best fix. But I need to find a machinist, so I hope this will work for now.

(Message edited by rodrob on June 26, 2014)
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Blake
Posted on Friday, June 27, 2014 - 01:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Just be careful not to inhale any BeCu.
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Jdugger
Posted on Friday, June 27, 2014 - 01:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Or Al02.
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Rodrob
Posted on Friday, June 27, 2014 - 09:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Or BS4U
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Jdugger
Posted on Friday, June 27, 2014 - 10:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Blake didn't inhale that, he ate a piece whole. ; )
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Rodrob
Posted on Sunday, June 29, 2014 - 12:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

LOL
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