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post #21 of 43 (permalink) Old 06-20-2013, 05:26 PM
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Did you refill the air in the rear shock? ...try bumping it tup to 59psi (stock) or 90 for Progressives.

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GL1500, 1990SE, 199k miles
Bridgestone Battlax BT45 on front, 41psi
Dark Side #590, 175R16 Austone, 50psi

GL1500, 2000SE, 168k miles,
Bridgestone Battlax BT45 on front, 41psi
Dark Side #590, 175/60/16 Dunlop Wintersport ROF, 41psi

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post #22 of 43 (permalink) Old 06-20-2013, 10:48 PM Thread Starter
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Location: Beaver Dams, New York, USA
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The issue started with the new tires. I have checked the bearings. Also I would agree that the (B) stands for bias and r for radial but the front tires (new and used) don't have any letters.

This is what I have on it now Front--


Got me. I'm at a loss. at this point I'm almost tempted to trade it in.
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post #23 of 43 (permalink) Old 06-20-2013, 10:50 PM Thread Starter
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I'm going on a big ride Saturday and would like to resolve my issue by then..
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post #24 of 43 (permalink) Old 06-21-2013, 12:03 AM
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Wow, it's hard to say for sure. Shinko does not call those tires radials, but the SR designation is confusing. They do use the word radial when referring to the SE series touring tire. So, my best guess is to agree there is something amiss with the head bearing adjustment.
Have you checked the air pressure with alternate gauges and what pressure are you setting the tires to?

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post #25 of 43 (permalink) Old 06-21-2013, 07:26 AM
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Could still have a bad tire! I had a Michelin once. Was fine going straight or right turn. But when you went left, it would act like it was falling. Had a defect in it. Michelin paid the labor to replace it and new tire. Did you buy them online or at the dealer? Either way. It should be covered under manufacturer defect tire.
I would take it back to where you bought them and tell them to fix it!
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post #26 of 43 (permalink) Old 06-21-2013, 11:10 PM Thread Starter
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The tire spec is 41 .lbs. I have checked for trueness and both are fine. Did not anything that looked alarming to me. How far above the spec air pressure would anyone think I could go. I could try uping that to see how it reacts to that. I think dropping the pressure would make it worse. I'm getting the bike ready now.
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post #27 of 43 (permalink) Old 06-22-2013, 12:03 AM
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How many miles have you put on the new tires? also just for fun what is the date code on the tires? they may be new old code is after the DOT stamp. Im thinking its your tires,GL1500 are very heavy and a cheap tire just wont cut it.
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post #28 of 43 (permalink) Old 06-22-2013, 12:06 AM
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That is one of the "less expensive" radial tires out there. I would want to be sure the load rating is sufficient for the Wing. Radials have less sidewall and if the load rating is maxed out... that could be the source.

Reading a few reviews on that tire, it sounds like it is shorter than a normal size tire. That would change the dynamics some.

I ran the same tire on the front and I got 4000 miles out of the tire.

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post #29 of 43 (permalink) Old 06-22-2013, 10:30 AM
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Like I posted I did some leg work for you. The shinko tire quality seems to be all over the board. From the rider magazine review it is made "The street reputation of the Tour Master and most Shinko tires is of a soft compound that provides stickiness but adversely affects tire longevity"

From what I've read elsewhere you may have a bad tire, (ply seperation), or are just feeling the "Caddy" ride these tires produce. Save your $$ because you will be buying new tires soon....-Rich
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post #30 of 43 (permalink) Old 06-22-2013, 05:00 PM
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To be running in a straight line at 60 would not normally produce ill effects, even from a cheap and cheerful set of tires, so either the tire is, or tires are bad, or it is one of the other things affecting it, as mentioned, even though you have checked and double checked settings.
All I can say for certain is that this is not a normal thing for a 1500 and therefore it is down to one of the things that have been discussed.
Expensive business, but I would be thinking of changing from those tires you have put on now.


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