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Old 06-17-2012, 12:10 PM   #1
AirForce OP
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Joined: Jun 2004
Location: Kickin on Rt 66, Waynesville MO
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Pulsing/grabby brakes, 08 R1200GS

I have a new to me 08 R1200GS that has developed grabby front brakes. At high speed it isn't noticeable, but at slow speeds it's downright pain in the ass. My dealer, Gateway BMW, took a look and found this little problem.


The broken little springy washer in the floating mounts.



What they should look like (see at the end of the black line)

Mine had a few of these break on the inside and outside of the mount and guess what??? You can't replace these little devils, you have to buy NEW rotors!!! Yay!!! $320 a piece from BMW. I really hope this is isolated and not something that is going to have to be done every 12000 miles.

Suggestions are always welcome.
Cheers!
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Old 06-17-2012, 02:44 PM   #2
little foot
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And 100 bucks a pair for the pads. ouch.
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Old 06-17-2012, 02:45 PM   #3
Callisto224
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Try Beemer Boneyard.
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Old 06-17-2012, 03:18 PM   #4
AirForce OP
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I haven't contacted beemerboneyard yet, but they say their ABM discs will fit all years of GS, yet the dealer (and the BMW fiche) show the discs as being different, starting in 2008. 07 and earlier had hard mounted discs and the 08 went to a floating set up. I wonder if you can mount non-floating discs on the 08 + bikes by using the 07 mounting bolts??
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1989 Honda GB600.
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Old 06-17-2012, 03:26 PM   #5
Swinefahrt
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My '07 GS had rotors replaced under warranty for the very same issue. The replacement rotors also pulsed but BMW wouldn't replace them so I bought Galpher rotors. They too have begun to pulse but not as bad as the OEM rotors. I asked the Max BMW parts guy if I could use the '08 mounts and he said no. Based on my experience I wouldn't use the '07 mounting parts.
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Old 06-18-2012, 03:36 AM   #6
Chat Lunatique
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Max BMW parts fiche has the screw with what appears to be the washer included for $1.98

34_1646 - FRONT BRAKE RIVET PACKAGE / Part #2

http://www.maxbmwmotorcycles.com/fic...8&rnd=05012012
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Old 06-18-2012, 05:35 PM   #7
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Unfortunately, that is just the mounting bolt (the ones BMW recommends you replace ANYTIME you remove a disc). The little wave washers are trapped between the disc and the rivet, as BMW calls it.
Seems kinda BS that a buck-fifty part fails and ruins a $320 part. ESPECIALLY one so critical to the safe operation of a bike...the front brakes.

Now, my bike isn't unrideable, but the pulsing and grabbing below 10mph is a bitch.

Come on BMW, quit letting the accountants and economists make decisions and listen to your engineers. I'm sure someone said the thin little wave washers were a crap idea.
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1989 Honda GB600.
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Old 05-23-2015, 06:14 PM   #8
dmason
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Anybody tried riding without the washers at all to see what happens?
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Old 05-23-2015, 06:58 PM   #9
SecretSquirrel
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I'd take a good look at the washer then go looking at Brembo's parts catalog for a direct replacement. I'd also look at Fastenal and McMaster-Carr for something close before I went plunking down $320 for a rotor.
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