rear vibration - BMW Luxury Touring Community
 
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post #1 of 11 Old Sep 18th, 2013, 9:46 pm Thread Starter
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rear vibration

Need help with my 05 LT.When riding straight I have a vibration that goes away when cornering.It doesn't change when powering or coasting only when in a lean.Is this a pending final drive failure? Bike has 42000 miles on it.When spinning wheel on center stand seems to roll smooth.
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post #2 of 11 Old Sep 18th, 2013, 10:52 pm
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Re: rear vibration

What make tires . . . and how many miles on them!

Typically vibrations are due to tires . . .

Dan Finazzo
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post #3 of 11 Old Sep 19th, 2013, 7:55 pm
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Re: rear vibration

I vote an ME 880 with about 4,200 miles on it. But then they normally get noisier when you lean not the other way around...

Any side to side play in the rear wheel?

John
2009 K1300GT Red Rocket
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2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #4 of 11 Old Sep 19th, 2013, 8:36 pm
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Re: rear vibration

If it's cupped it will vibrate in the middle but not on the sides where it's barely used.

what air pressure is the tire kept at? I have heard pressures as high as 46 psi are needed to keep the rear tire from cupping.

Currently riding a 2003 K1200LTC
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post #5 of 11 Old Sep 20th, 2013, 1:47 am
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Re: rear vibration

It's probably a bad tire. If the bumping correlates with each revolution of the tire, it's a bad tire. Just because it looks round doesn't mean it'll feel round when riding. There's about seven or eight things that'll make it go "bump" and still look round when you inspect it. You probably have a wide belt splice. Safe to ride, annoying as hell.


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post #6 of 11 Old Sep 20th, 2013, 2:11 am
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Re: rear vibration

Quote:
Originally Posted by timgray
If it's cupped it will vibrate in the middle but not on the sides where it's barely used.

what air pressure is the tire kept at? I have heard pressures as high as 46 psi are needed to keep the rear tire from cupping.
first check the tires. Keep tires at
42 psi front
48 psi rear
That will delay but won't reverse the issue.
Get new tires or turn up the radio.

Just Go
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post #7 of 11 Old Sep 21st, 2013, 12:29 pm Thread Starter
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Re: rear vibration

Shouldn't be the tire, it's brand new. It's more like a buzz I guess. I thought it was the speed sensor rubbing the slots in the rotor but I can't feel anything by spinning the wheel on the centerstand. It only does it when the bike is straight up, in a lean to either side it stops.It sure sounds like it's in the rear drive.It kinda makes me nervous,my wife and grandkids go on a lot of rides with me. I have only had the bike since March and rode it home from South Carolina when I bought it and just started noticing the vibration on a trip to Kentucky in late July. I did replace the rear rotor about that same time with a EBC rotor. Could that be the problem?
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post #8 of 11 Old Sep 21st, 2013, 2:51 pm
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Re: rear vibration

Well there is nothing in the rear drive (when it is going south) that will get quieter in a lean so I think you are OK there. Also when the drive goes it goes pretty fast on a big bearing failure. Make sure the tire is not rubbing on the swing arm. Also which tire did you just install? There are only three out there that are correct for the LT rear.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #9 of 11 Old Sep 21st, 2013, 5:05 pm
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Re: rear vibration

A tire can get cupped in under 300 miles if you ran too low of pressure. I cupped a set of brand new tires on a car within 100 miles because the dealership set the tires at 30 psi instead of the 42psi that they are supposed to be at.

Currently riding a 2003 K1200LTC
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post #10 of 11 Old Sep 22nd, 2013, 6:54 pm
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Re: rear vibration

Check your lug nuts

RICH CANNON
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post #11 of 11 Old Sep 22nd, 2013, 8:39 pm Thread Starter
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Re: rear vibration

I put a Metzler ME880 back on it.I took a ride on it today and the same thing ,a buzzing type of vibration when straight up and goes away in a lean. Next weekend I'll year into it to see what I can find. Thanks for all of the help.
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