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Old 05-16-2010, 07:57 PM   #1
pheonix_71
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Tire Rebound tear? Which direction to go with adjustment?

I've been playing around with the suspension and I've been getting closer to where I like it generally, but I had a question regarding tire wear. From what I see I've got minor rebound tear on front and rear. The wear is different on front from rear, front tire the leading edge is up and trailing down, and on the rear tire, the leading edge is down and trailing edge is up. My big question is, if it is indeed a bit of rebound tear, which direction should I go depending on the edge it's cupping, or does the edge matter at all?

They're pilot power single compound and I'm running 34F 36R street riding.
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Old 05-16-2010, 09:16 PM   #2
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Too much pressure for one.... try 33-ish...

You cant have tear on the front, it must be something else....

Do it in steps..

First before you do anything follow these steps:
1) set sag front and rear (GO see Dave at GP)
2) install the correct spring for your weight
3) set tires at correct pressure, and ride at proper temp.

fine tune.

Tears? What tears?
Compared to my track tires, those Pilots look brand new!
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Old 05-16-2010, 10:45 PM   #3
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yeah, I don't know why I kept saying tear anyway. but the cupping was what I was interested in. from what I've read it seems like it's rebound related, but I really want to know if it matters which edge the cupping is on.

thx for the heads up don.
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Old 05-16-2010, 10:57 PM   #4
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also just a side note...ur rear tire should have less pressure than your front - usually about a pound or two less....

If ur riding on the street, why are you worried about your tires cupping? Just ride the damn thing...if the suspension feels off, fix it, but if the tire is wearing funny and the suspension feels fine -- why mess with it? Just my 2.
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Old 05-17-2010, 09:09 AM   #5
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I think you might want to put a half a turn in rebound for your rear and go from there.

But go to gp and have your suspension set for you weight, its like $40 and well worth it. You will never guess about your suspension again unless your lose or gain weight.
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Old 05-17-2010, 12:14 PM   #6
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I will get it set up later on, I just wanted to fiddle with it myself for right now. I'm getting an Ohlins this summer and will have it done then, I just wanted to tinker for now. I think you're right on the rebound though, I'll try that.
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Old 05-17-2010, 01:13 PM   #7
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Just don't make anymore changes than a half a turn at a time. Make sure to note everything you do that way it won't be a waste besides getting a targeted result, you will have a track of the change and the result :)
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Old 05-17-2010, 01:16 PM   #8
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Do you plan on racing doing a lot trackdays? If not, Ohlins suspension for the street is really over kill. Buy a few trackdays instead, it will pay off a lot more than Ohlins suspension. For the street that is.
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Old 05-17-2010, 03:15 PM   #9
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Trackdays will come as soon and plentiful as I can fit them in my schedule.
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Old 05-19-2010, 07:29 PM   #10
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OMG i started laughing so hard when I read this and saw the pictures I almost fell of my chair.

Matt and Don nailed it. Do what they say.
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Old 05-19-2010, 09:34 PM   #11
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actually ... do this... look and listen...

http://www.ustream.tv/recorded/6516891

then get your bike set up by GP... ( i use barry at GP north) but i have heard that Dave at GP (south) is pretty ok
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Old 05-19-2010, 09:43 PM   #12
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By the looks of your tires, it just looks like tire wear to me? If you don't want to see it you could go get the hardest compound possible and just slide all over the road. Price you have to pay for good grip is usually quick tire wear. Ask any racer.
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Old 05-20-2010, 11:17 AM   #13
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I know it's fairly usual tire wear, main thing I'm asking is if it matters which side the cupping happens on, I know the front is handling a different direction of force than the rear, but does it matter which side? Besides, there's ALWAYS room for improvement on anything, I just want to know more about this stuff.

Should I rename it to "help me figure our $hit I'm curious about"?
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Old 05-20-2010, 01:33 PM   #14
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Lean further over, add throttle.
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Old 05-20-2010, 02:28 PM   #15
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Quote:
Originally Posted by pheonix_71 View Post
I know it's fairly usual tire wear, main thing I'm asking is if it matters which side the cupping happens on, I know the front is handling a different direction of force than the rear, but does it matter which side? Besides, there's ALWAYS room for improvement on anything, I just want to know more about this stuff.

Should I rename it to "help me figure our $hit I'm curious about"?
If ur not losing traction..

A. Don't touch the suspension

or

B. Ride Harder :)
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