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Old 11-14-2012, 02:38 AM   #16
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[quote=Rich Moran;2361119]Yea, Dunlop loves selling tires.

Such is life, but I have better use of my money else where.

I have done this now for the last 8 years without incident.

Dunlop can keep their 195.00 front tires as long as possible as they do not need my business as frequent as yours I suppose.

Funny, your "Some manufacturers recommend against this" posting means that any mods done should not be done either.

You'll hear that time and again if something goes wrong because of hanging non-Harley bling on your ride.

The dealership likes sticking it to people who do these "mods" and most notablly is heard when the reapir bill is over the top.

Like anything else anyone does, pick and choose carefully what you do, monitor what is going on to be sure safety is not compromised and you should be good to go.

Not certain if you remember the days when people said "running synthetic oil will destroy your Harley engine, as the bearings
were not designed to be used with synthetics".

Yea........K.......

I am very comfortable squeezing all the miles from the tires I can.

Of course, don't take my word for it, 8I don't know jack sh*t!!



Quote:
Originally Posted by Vambo View Post
Some manufacturers recommend against this, Dunlop is one. Some makers have no objection but will tell you most all these tires are directional. For the money, I'll just switch them out.
Gave up on dunlops long ago. Swapped out the factory tires really quick. I also do not take any dealer or manufacturer at their word, let alone information off the net. I do however know that rubber has it's limitations, that age and weather conditions it's exposed to take a toll regardless of mileage. Many people, and I am certainly one, will not run an old tire regardless of wear conditions and/or mileage, let alone throw it on backwards to scrounge a few hundred more miles out of the damn things. To me a $300 or $400 change out is paltry compared to my safety. I have a 3-4 year rule on tires (from date of manufacturer), after that they are considered unsafe. This is not from the makers, not from the dealers. You've been around, surely you must be aware of the problems with aging rubber. Why skimp for nickels and dimes? I can only imagine what riding in the wet is like with the tire tread throwing the water backwards form the designers intended direction.

*But in any case -
There is an overlap point on all tire splices that is bonded and the directional arrows not only show the proper dispersion of water but allows proper pressure on this splice as to aid it's bonding, whereas running it backwards put severe strain on the splice and can effect this bond greatly. Also and more importantly when applying the brakes can peel that tread splice back and sever the bond. That is why the front is opposite the rear since most braking should be done up front (according to the industry).


It's basic physics or basic science Jim. You've been lucky.
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Old 11-14-2012, 01:00 PM   #17
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Vambo, I appreciate your pointing all of this information out, it is not luck at all that the tires stay together, it is the nature of the design to let the tire perform reverso or not.

here is some "other" input fromthe GSX forum with their input as well:

http://www.gixxer.com/forums/archive.../t-273196.html

Not trying to make an issue out of anything by posting this stuff, but I say it is a crock of shite that stating a tire will come apart, especially a front tire that carries less load and does less work than a rear tire does. Maybe a rear, under hard acceleration and abuse over and over again...but hey, I've seen slicks come apart run in the supposed correct direction.

I've been tempted to flip the rear as well, if I had a tire machine I'd do it, the dealership won't do it for me as I have already checked.

Granted, if there are construction issues, where proper interlock of the materials from molten to plastic and finally hard rubber occur, then the tire is defective and would not make it to the market. If a defective tire makes it to market, I believe it would be in a short amount of time the tire would come apart.

If it is rain and getting wet one is worried about, well so be it, fair weather riding is part of everyones disposition anyway. At some point riding in the wet can push one to their physical limits, especially where cold is involved and then it is probablly best not to be on 2 wheels. In the end, regardless of which way the tire is mounted, your going to get wet.

Anyway, I'll continue to run the tires as needed to get the miles out of them.

Happy motoring!
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Old 11-14-2012, 01:49 PM   #18
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Quote:
Originally Posted by Rich Moran View Post
Vambo, I appreciate your pointing all of this information out, it is not luck at all that the tires stay together, it is the nature of the design to let the tire perform reverso or not.

here is some "other" input fromthe GSX forum with their input as well:

http://www.gixxer.com/forums/archive.../t-273196.html

Not trying to make an issue out of anything by posting this stuff, but I say it is a crock of shite that stating a tire will come apart, especially a front tire that carries less load and does less work than a rear tire does. Maybe a rear, under hard acceleration and abuse over and over again...but hey, I've seen slicks come apart run in the supposed correct direction.

I've been tempted to flip the rear as well, if I had a tire machine I'd do it, the dealership won't do it for me as I have already checked.

Granted, if there are construction issues, where proper interlock of the materials from molten to plastic and finally hard rubber occur, then the tire is defective and would not make it to the market. If a defective tire makes it to market, I believe it would be in a short amount of time the tire would come apart.

If it is rain and getting wet one is worried about, well so be it, fair weather riding is part of everyones disposition anyway. At some point riding in the wet can push one to their physical limits, especially where cold is involved and then it is probablly best not to be on 2 wheels. In the end, regardless of which way the tire is mounted, your going to get wet.

Anyway, I'll continue to run the tires as needed to get the miles out of them.

Happy motoring!
Actually, front tires work very hard when braking. In fact they see much more pressure and abuse due to the dual discs.
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Old 11-14-2012, 05:23 PM   #19
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Quote:
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Actually, front tires work very hard when braking. In fact they see much more pressure and abuse due to the dual discs.
And all the weight of the bike transfers to the front tire and multiplied by g-force during braking.

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Old 11-15-2012, 02:31 AM   #20
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And all the weight of the bike transfers to the front tire and multiplied by g-force during braking.
Not to mention the turning with a 30 some degree rake.
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Old 11-15-2012, 12:14 PM   #21
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Quote:
Originally Posted by blubyubusa View Post
This is somewhat different than the gentleman on another post talking about throttle side tire wear. I have on my 09 A model an inordinate amount of left side tire wear and a number of post make me believe that is fairly common. My question, does the removal of the boat anchor exhaust cause this? Is the bike designed to have a nearly 50 pound exhaust on the right and when we balance the unladen bike would it tip it left and put more wear there? If I am thinking backwards, let me know. Does it effect anything, that is, the exhaust removal. Thanks and best to everyone.
I've got a v-modded stock exhaust and I get the left side wearing out first too, so I don't think it has anything to do with removing the stock exhaust. This bike wears out tires, especially fronts, faster than any bike I've owned. My other bike has 40° of rake and it doesn't wear out as fast or unevenly.

??
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Old 11-15-2012, 04:20 PM   #22
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Originally Posted by jacobyvic View Post
I've got a v-modded stock exhaust and I get the left side wearing out first too, so I don't think it has anything to do with removing the stock exhaust. This bike wears out tires, especially fronts, faster than any bike I've owned. My other bike has 40° of rake and it doesn't wear out as fast or unevenly.

??
A v-modded exhaust is basically a stock exhaust minus a very few pounds, if that.
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Old 11-15-2012, 08:11 PM   #23
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front or rear

Is the uneven wear for vrod tires generally associated with just the front or rear or both? Both of mine are wearing on the left? Do I have a misalignment problem, swingarm bushing issue, bearing issue, or is the slop on the right side rear axle cam too much? I am not asking you to diagnose my problem, just what is the most likely.
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Old 11-15-2012, 09:05 PM   #24
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Quote:
Originally Posted by Vambo View Post
A v-modded exhaust is basically a stock exhaust minus a very few pounds, if that.
?? That was my point.

He said, "does the removal of the boat anchor exhaust cause this?" And, my response was basically, "no, I've still got the boat anchor and my front wears on the left side."
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Old 11-15-2012, 10:34 PM   #25
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Wrap it up to 130. If it shakes then you have a problem. If it doesn't then you are probably more comfortable cornering one way than the other and that might be where your uneven wear is coming from.

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Old 11-16-2012, 03:31 AM   #26
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Quote:
Originally Posted by jacobyvic View Post
?? That was my point.

He said, "does the removal of the boat anchor exhaust cause this?" And, my response was basically, "no, I've still got the boat anchor and my front wears on the left side."
What did I miss? He was asking if you removed the stock exhaust, which you admittedly have not, would that ease the wear.
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Old 11-16-2012, 08:37 PM   #27
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Quote:
Originally Posted by Vambo View Post
What did I miss? He was asking if you removed the stock exhaust, which you admittedly have not, would that ease the wear.
Heh... how are we reading this differently? Here's what he said: "My question, does the removal of the boat anchor exhaust cause this?"

He's not asking "if you remove the stock exhaust, would that ease the wear", he asks "does the removal of the <stock> boat anchor exhaust CAUSE this?"

As you correctly note, I haven't removed the boat anchor, so I was responding, "no removing the stock exhaust doesn't cause this, I've still got the stock exhaust and I've got the same issue."

Whew. One of us is failing reading comprehension.
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Old 11-17-2012, 01:22 PM   #28
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One other point to inspect is the measurement of the left tube that sits above the top triple tree to that of the right tube above the right side of the triple tree.

There is a specific measurement for the adjustment of the tubes and if this is off this may contribute to the uneven wear.

If your using a carpenters rule, don't. Use a machinists rule to get the correct measurement and measure both tubes at the same point of the triple tree to insure the tube clearance above the top triple tree is correct.

One could consider a "minor" adjustment difference in measurement to see if this counters any unusual wear.

Before any major riding is done, be sure the ride is safe and no suprises come from a difference (would do this in 1/64" incroments and no more) as when this adjustment runs the length of the tube and lower leg to the front axle along with the rake, the measurement difference could make a major impact at the center of the axle.

On flipping the tire, I've yet to read ANYWHERE and if anyone has fact and not fiction on tire shredding for street use, please post it where there are specifics that a front tire has come apart.

I've yet to read anything anywhere and see proof in images that flipping a Dunlop front tire on a V-Rod causes failure.

Until some one can show proof positive where not one, but several failures have occured, it's bunk, a myth & it is an old worn out wives tale.

I have 3 worn front tires sitting on the side of the house that I've changed out over the years.

I can take pics to post of these for wear and how well the tires have held up over 17,000 miles that each had delievered if anyone is interested.

There is no hint of anywhere on the tires coming apart.

In fact, if there is interest, I can saw one or all 3 in half and take images of the stranding as well as the lay of the rubber on the stranding to show what is fact and not fiction.

It has been stated many times before that uneven tire wear is due to the radius of the road & hard acceleration and braking in turns. If the front tube adjustment is off, and that is one point here I'd suspect first to check, an dcombined with hard riding, of course that is going to cause uneven wear.

With the belt side of the rear tire, it is not uncommon to see the wear this way, the belt is pulling the tire to the left.

With the front tire uneven wear, I'd start with checking fall away and while the front tire is off the ground.

Then check for ratcheting, where the steering head bearings have zero lube and have worn into the races causing the front tire to track incorrectly, where the tire is not only spinning as it was designed to do, but is being pushed to one side or the other.

Another way to discover how the tire lays on the ground, is to wet the tire and then push the bike forward and check the tire print left behind. Use of a straight edge, such as a 16' X 2" X 4" will aid in straight roll.

To get a longer lasting tire print, mix soap into the solution as this will slow the evaporation of the water used.

If you do this with a cold tire, you will not get a correct imprint to diaganose what is really going on.

Things change at speed as well, as the tire does ballon more so due to heat, so if you see anything off even with a warm tire, it will be off more at speed.

Combining the inspection of fall away, correct tube adjustment, correct air pressure and flipping there should be no reason other than hard acceleration in turns and braking that would cause the tire to wear prematurely.

Excuse me, I have to go check fall away & flip my front tire as it has just hit 1,500 miles since the tire was new.....................happy motoring.
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Old 11-17-2012, 07:50 PM   #29
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This kinda sounds stupid, but I was riding today and while coasting behind traffic, took my left hand off the bars and noticed how the bike was leaning to the left to keep it balanced. I do this a fair amount in traffic and it made me think of this thread and whether it could have anything at all to do with this. How many of us do this?

Seems unlikely, but I thought I'd throw it out there...
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Old 11-17-2012, 07:52 PM   #30
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Run 40psi front/back, You'll be good to go.
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