[Chippy01]

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Yesterday I was doing some cleaning and polishing. Yep, she did need a good rub down........

boy, doesn't theblack and chrome shine up well..and FAST too, even when she's standing still..

Anyway, while checking on the tyres, I noticed some very strange tyre wear.
Rather than write a story, I thought I would just post a couple of pics to show you what I mean.
These pics are taken from the back of the bike looking forward.
The tyres are Venom R's, with about 11,000 miles on them.

Take a look to the right of the tread....

On this one, I wiped the dirt off.

Now I don't mind the 'flat spot' appearing in the middle. I expect that as I normally run two-up anyway.
It's the wear to the right that has me puzzled.
It is all the way around the tyre, just on that side.
Any ideas? Anyone?

 

[AZgl1800]

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Looks like a knife blade is dragging the tire on that side.

Doubtful, but it does appear to be abnormal. All the roads you ride on must be canted to the left, or else you never ride in a straight line. that's it, you are always circling to the right, a man lost in the world will do that ya know :waving:

That from hearsay evidence of folks lost in the forest, they always circle back to where they got lost.

 

[Panatellos]

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well if you watch his avatar and the way he rides (hehehe) it would explain what happened to his tyre............

 

[plskthompson]

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Don't know if you run bias ply or radials. Looks to me that you have a radial with a belt starting to slip. It doesn't happen often, but when it does you know it. Is it giving you any type of vibration on the road?

 

[3rdwing]

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Looks like the left side is cupped a little as well just not as much as the right. I just replace arear tire that was cupped on one side it had 7,000 miles on it. After riding over 600 miles in steady winds forcing me to lean the bike into the wind the entire time. It was a bias ply.

 

[Hatchetman]

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If your swing arm alignment is good & your bushings are good, Go see a tire rep. It might be a lemon tire but Im thinking alignment!

 

[oldtoys1961]

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That looks like my old Avon Venom. My Venom did the same thing.Had a flat spot on the right side that would show bias. I looked for a wheel weight and found I lost it somewhere at sometime.JR

 

[gotta love the wing]

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Any chance you have a bent fork/frame?

 

[CaptainMidnight85]

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Chippy01 wrote:

Anyway, while checking on the tyres, I noticed some very strange tyre wear. Now I don't mind the 'flat spot' appearing in the middle. I expect that as I normally run two-up anyway. It is all the way around the tyre, just on that side.

One thing better race courses avoid like the plague in their design and construction that is designed-into public roadways for safety is "Road Crown"

Different Municipalities and Jurisdictions have different formulas for their approach to formulas in use. Expect anywhere from 3.6%-6%averages for the norm on straights with as much as 10%+ in higher rainfall areas. Drier climates may have 2% or less. Sweeping turns and curves have higher percentages with left- or right-hand dependance.

Here in the states, larger libraries carry the AASHTO Green Book,a good source for calculable reference. Tire wear in racing is crucial... and calculable to a degree. Same on the street.