Noise at highway speed - BMW Luxury Touring Community
 
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post #1 of 13 Old Oct 17th, 2011, 10:25 pm Thread Starter
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Noise at highway speed

I have a 2002 K1200LT. I noticed right after I bought it last summer, that there is a loud hum or groan harmonic type noise at highway speed whenever I lean into a turn, which seems to get louder the faster I travel or more I lean. I spoke with the mechanic at the BMW dealer where I bought the bike. He is also a KLT rider. He told me that it is a design issue with all KLT's that is somehow related to the tires. It is quieter with newer tires but all bikes, regardless of the brand or tires used, make this noise. I am reluctant to accept this explanation. Does anyone else notice a similar noise?
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post #2 of 13 Old Oct 17th, 2011, 10:34 pm
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Re: Noise at highway speed

It comes from the worn tires. Change to a new set and you'll find it is gone.

Born to be wild so why not

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post #3 of 13 Old Oct 17th, 2011, 10:50 pm
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Re: Noise at highway speed

That's right.....worn tires. Most of the time you can actually see the cupping on the tire. I always love new tires! Problem is....they're only quiet for a short time. I've run Metz and Bridgestones only. Both give the same results to me.

Rocket Ron


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2002 LT
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post #4 of 13 Old Oct 17th, 2011, 10:56 pm
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Re: Noise at highway speed

The LT is also infamous for the "K-Whine" which occurs at around 4,000RPM to 4,200RPM in 5th gear. Its a little unsettling at first, but no big deal after that. It can be somewhat endearing.
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post #5 of 13 Old Oct 17th, 2011, 10:58 pm
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Re: Noise at highway speed

I would wager you have a Metzler front tire.

If so it I'd cupped and it howls in the turns - if you have not hit the wear bars you can either live with the howl until the tire wears out or replace it with either a new one and keep the tire pressure up 48 PSI or switch brands that don't howl that much - Bridgestones or Avons as they wear out.

All tires on an LT will cup depending upon tire pressure, the roads you ride and your riding style ans skills!! Many here believe heavy braking in the corners is the leading cause of tire cupping along with low tire pressures.

Dan Finazzo
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Last edited by dfinazzo; Oct 18th, 2011 at 12:05 am.
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post #6 of 13 Old Oct 18th, 2011, 3:43 am
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Re: Noise at highway speed

Yep, tyres (tires) for sure. My Bridgestone BT020 is about shagged on the rear and man does it howl in the turns. My wife has even asked what the noise is. (They usually call it a "funny" noise, but I usually find it to be related to $$, and that's never funny to me). On the K whine, it is a beautiful sound, the sound of engineering personified, I wish my K12 was as good at it as my K100 was, she made a wicked whine at about 2500 rpm. Learn to love it, sure beats that dry clutch clank of a Ducati.

Dennis
1987 Yamaha TY250R
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post #7 of 13 Old Oct 18th, 2011, 8:31 am Thread Starter
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Re: Noise at highway speed

Thanks everyone for the quick responses. I will check tire pressure and see how that works. The tires do not look worn and appear to have plenty of life/tread left. I am relieved that it is the tires, and that I can apparently trust the dealer. I love this bike.
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post #8 of 13 Old Oct 18th, 2011, 9:40 am
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Re: Noise at highway speed

I used to agonize about all the little noises that come with this bike, thinking it was gonna' fall apart under me any minute....but, it didn't and I no longer worry about the little things...

2000 Maroon [Canyon Red] K1200LTC
2006 DL650 [Red]
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post #9 of 13 Old Oct 18th, 2011, 11:53 am
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Re: Noise at highway speed

+1 on the tires thing - Metzlers, right?

Same on all my LTs, still handles great so long as tread depth is good. Front on mine usually starts to sing around 6-7K, have lasted to 19K. Current only sings right, quiet left.

Ride safe

Jim Taylor
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post #10 of 13 Old Oct 18th, 2011, 11:57 am
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Re: Noise at highway speed

Howling tires save lives!!!

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 #11 of 13 Old Oct 18th, 2011, 3:02 pm
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Re: Noise at highway speed

And for Metzlers, the front should be 42# on the LT. The Rear 48# to 50# of pressure depending on load.

Noisy, but they handle the weight pretty well.. They are better for going over steel grate bridges than radial tires, but they are noisy buggers.

Bill

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post #12 of 13 Old Oct 18th, 2011, 6:15 pm
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Re: Noise at highway speed

Quote:
Originally Posted by jzeiler
Howling tires save lives!!!
BAWAHAAAHAAAHAAAWWWW!!!!!

John, dang you... You owe me a keyboard...

Uncle Mark

BMW '06' 1200LT "Wild Blue"
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post #13 of 13 Old Oct 18th, 2011, 6:21 pm
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Re: Noise at highway speed

No radials are made for the LT anymore just bias ply

and on another note howling tires just wear me out!!

Dan Finazzo
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