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Old 03-19-2009, 02:41 PM   #1
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Default Front Tire wear weirdness?

What causes foam Front Tire wear like this?

The left side is inside, right is outside. It isn't as drastic as depicted, but I hope you get the idea, tire wearing towards the middle inside, about .4mm smaller after a day of racing than both outer edges. The outer edge cones slightly as expected. This is on a SpeedMerchant Pro-10 WGT with Jaco Lilac spec tires.

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Old 03-19-2009, 02:49 PM   #2
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kinda hard to tell from that drawing, but theres a particular wear pattern I see when the fronts are REALLY working well... looks like maybe the middle part of the tread is wearing smaller than the rest, the smaller wearing part is toward the inside of the tread, but not all the way to the inner edge, the outer "corner" stays rounded, the inner "corner" gets an almost sharp edge to it.

Don't see it often in r/c, used to see it in go karts a lot
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Old 03-19-2009, 04:25 PM   #3
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Yep - that pretty much describes it. Middle inside of the tire wears out quicker than either the inner/outer edge of the tire.

I was trying to adjust it out of the car, but the car has superman grip through the corners and can turn on a dime. If you say that is working REALLY well, I will leave well enough alone.
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Old 03-19-2009, 04:42 PM   #4
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I even have a book here about full scale racing and the author describes that wear pattern as something you aee when a tire is really working well... I'll try to dig it up and snap a picture of the pic in the book and post it here...

might take a few hours...
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Old 03-19-2009, 04:44 PM   #5
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May be a silly question, but is the body hitting the tire ?
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Old 03-19-2009, 06:35 PM   #6
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Nope. I'm using the Protoform Corvette body, and there is about 1/2" between the body and outside edge of the tire. The tires have "zero" cuts in them from a body touching them, like I see on my 1/12 scale.
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Old 03-19-2009, 06:50 PM   #7
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well, I can't seem to find the book anywhere, I must have loaned it to someone.

That wear pattern is a good thing tho... I don't often see it on my 1/12, but when the car is really "on" and I'm driving it well, that's how it looks.
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