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Old 11-25-2009, 05:03 PM   #1
marchyman OP
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Pissed Rear wheel flange cracks

I check for cracks every tire change. Never found any. Today I pulled the rear brake rotor and when cleaning up parts before mounting the new one I found this:



Grumble. The bike is an '05 with 50K miles. I don't have a puller to remove the old flange so will remove the FD and take it to the dealer. I don't expect the labor charge to be very much. The part, on the other hand....

More on removing the rear rotor at http://www.snafu.org/pics/r1200gs/2009/1125-rear-brake/
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Old 11-25-2009, 05:29 PM   #2
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Marchy,
look here:http://www.advrider.com/forums/showt...t=cracks+wheel

This problem has occurred before - it appears that you already saw this thread. I suggest to get BMW involved and, if that does not help, the friendly folks from the NHTSA. IMO cracks in the wheel are a serious issue that pose a life threatening hazard to the rider and possibly other drivers.
Just my opinion
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JurgenB screwed with this post 11-25-2009 at 06:08 PM
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Old 11-26-2009, 06:35 AM   #3
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Wow that sucks, I'll let my friends with 1200's know about this issue.
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Old 11-26-2009, 07:55 AM   #4
AntonLargiader
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Marco,

Give it a go first with heat. You might find that it slides right off; I have found that before.
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Old 11-26-2009, 10:09 AM   #5
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There was a guy on the Dutch GS forum who had the whole brake rotor come off



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Old 11-26-2009, 12:02 PM   #6
JimVonBaden
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Quote:
Originally Posted by Reverse
There was a guy on the Dutch GS forum who had the whole brake rotor come off



Yeah, and by the look of it he ignored the signs for a long time!

As Marc know's, this is not a new issue, and more likely by far on the early 05 bikes. Hopefully it will not be a hard fix. I check for this every time an R1200, or K1200/1300 wheel is removed.

Jim
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Old 11-26-2009, 01:01 PM   #7
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Quote:
Originally Posted by JimVonBaden
Yeah, and by the look of it he ignored the signs for a long time!

As Marc know's, this is not a new issue, and more likely by far on the early 05 bikes. Hopefully it will not be a hard fix. I check for this every time an R1200, or K1200/1300 wheel is removed.

Jim
Have you ever found cracks, and if so, what would you estimate the percentage to be?
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Old 11-26-2009, 04:21 PM   #8
marchyman OP
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Quote:
Originally Posted by AntonLargiader
Marco,

Give it a go first with heat. You might find that it slides right off; I have found that before.
Thanks Anton, I'll do that. I've got maybe half the stuff needed to make a puller, too. Maybe I can get creative. I'd like to do it without taking the FD off the bike. Not that taking it off the bike is a big deal, but I'm lazy and it means I'd have to clean my work bench.

Happy thanksgiving, all.
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Old 11-26-2009, 04:38 PM   #9
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sounds like a good enough reason to get a good torque wrench and know how to use it.
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Old 11-26-2009, 05:13 PM   #10
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Quote:
Originally Posted by SocalRob
Have you ever found cracks, and if so, what would you estimate the percentage to be?
On all the bikes I have changed tires on, and worked on, I have not seen one bike with cracks, but I always check. I've probably seen 50-60 bikes in the last couple of years that I had a chance to examine.

I can't estimate, but I doubt the percentage is high unless you own one of the first 500.

Jim
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Old 11-26-2009, 10:59 PM   #11
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Quote:
Originally Posted by pavement pounder
sounds like a good enough reason to get a good torque wrench and know how to use it.


I have three good torque wrenches and know how to use all of them. Well, only two of them are good, the third is just average.

What does that have to do with the cracked flange? The flange did not crack due to lack of use of a torque wrench. Nothing has been torqued in those holes since BMW installed the rotor 50,000 miles ago. They crack in use. Or at least some of the flanges on '04 and some '05 bikes do. BMW changed the flange somewhere along the line. New part number and all that.
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Old 11-27-2009, 01:45 AM   #12
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over-tight

Could this be from snugging the lug nuts up too tight
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Old 11-27-2009, 04:42 AM   #13
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Quote:
Quote:
Originally Posted by JimVonBaden
Yeah, and by the look of it he ignored the signs for a long time!


Jim
Just like BMW is ignoring customer safety. Owners really need to file a complaint with the NHTSA.

bemiiten screwed with this post 11-27-2009 at 01:56 PM
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Old 11-27-2009, 04:46 AM   #14
JimVonBaden
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Quote:
Originally Posted by bemiiten
Just like BMW is ignoring customer safety. Owners really need to file a complaint with the NHVSA.
That wont really help for those like the ones in the photo above if they do their own work, and it is not like BMW didn't redesign the old ones. Plus, the actual numbers of this must be very low indead or we would see this post repeated hunderds of times for every 10 times it happens, like with EVERY other problem BMW has.

Jim
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Old 11-27-2009, 09:54 AM   #15
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Quote:
Originally Posted by JimVonBaden
That wont really help for those like the ones in the photo above if they do their own work, and it is not like BMW didn't redesign the old ones. Plus, the actual numbers of this must be very low indead or we would see this post repeated hunderds of times for every 10 times it happens, like with EVERY other problem BMW has.

Jim
Jim, imo, we are going to see this more often, it's mostly 04,05,06 bikes with this problem, most of those bikes getting higher miles on now, and it seems like a mileage thing, not a age thing.
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