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Discussion Starter #1
Over the past few days, I have been noticing this happening.

This happens only while decelerating. Exactly as the speedometer goes past 40mph, I have a very serious vibration from the front. If I relieve the grip on the handlebars, it immediately goes into a tank slapping mode.

I have checked and rechecked the tire pressure on the Metzeler. It is right at 42 psi on the front, and 48 psi in the rear. If I increase the front tire pressure, the tank slapping increases even more and is noticeable at higher speeds also. I have not noticed any cupping, but maybe I am not identifying the situation with the tires correctly either.

I bought the bike with 19,616 miles and it now has over 27K miles. Dealer told me that the Metzelers were installed ver recently before I bought the bike. They were practically brand new when I bought the bike.

What should I be checking? Maybe I'll snap a few picture later this afternoon for y'all to comment on.
 

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Wrencher Extraordinaire
2005 K1200LT
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13,909 Posts
It's the front tire. When I first read about this I tried to duplicate it. The new bike with the original tire (Metz 880)would not do it at all. As soon as I wore the tire down about 4-6K it started - wobble on decel thru 40. Don't really feel it if I hold on. At 14 K installed new a new tire (Metz 880) and it is more pronounced but then the new tire is a bit out of round (ever so slightly). Will see what happens on the next one. I just don't let go of the bars when slowing down and don't notice it.
 

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Prakash,
Ditto with John's answer...You got good mileage on this set of tires..To keep yourself in the ZMDC (Zero Motorcycle Down Club) go ahead and spend the $$ for a new set of tires...My view on this was after my rear tire was 70% gone this happened to me also. But my front was completely wore out, and the Tires only had 7k miles... My 2006 came with Bridgestones I switched to the Metz(880) no problems yet, currently have 8k on these tires the rear is 90% gone and the front maybe 50%..these LT's are very sensitive to air pressure setting & tire wear... Different for each individuals you got to find your best settings...
Mine was a little higher airpressure in the front, 44Front, 48 Rear
 

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Discussion Starter #4
FWIW, I've put over 2oK miles on Metzeler tires on my previous bike without problems. The only thing that I've heard are to look for the Metzelers made in germany and nowhere else. Production from other countries seem to have trouble.

I was gonna change them out closer to 10K miles since I bought, which would be in the next month or so. Maybe I should just go ahead and get a new set of tires installed sooner!!

BTW, should I stick to the standard tire sizes or is there a better coice of sizing with Metzelers? Oh, and I've not heard many good reports with bridgestones. So, I won't even bother to look at them. Are others using any brand other than these two? Could you please give me some more insight!!
 

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6k on the 'Stones.. then cupping/feathering/fubared... and noisy in turns and wants to "tank slap" if pressure relieved on handlebars. New tire.. PROPERLY balanced.. runs much better and more miles... or that is how it is on Misty '05
 

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I had the same problem with my original stones on my '05 so I switched to the 880 Metz and it fixed the problem.
 

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I changed to the 880's as well...after 9,000+ miles on the 020's. While the problem has not completely gone away...it is less severe. The dealership is replacing the lower fork bridge for me o/a the 11th of Aug.
 
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