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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through July 10, 2008 » Tire Size « Previous Next »

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Mustangturbo
Posted on Monday, July 07, 2008 - 11:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I know that a thread was started on this before... But I don't remember a conclusion being reached. I know that a 190/55 would be too tall and would hit the exhaust... But what about a 190/50? I want to get a set of Pilot Race for it but I want to go a little wider.
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Mustangturbo
Posted on Tuesday, July 08, 2008 - 09:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Anyone out there?
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Black_snowman
Posted on Tuesday, July 08, 2008 - 10:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If you do get a wider tire, make sure it's made for the correct rim width or it will throw off the handling, possibly severely.

Personally, I'd stick with the stock sizes. I can't see any advantage with changing them that isn't more than offset by the disadvantages.
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Mustangturbo
Posted on Wednesday, July 09, 2008 - 10:20 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok... I am going to take it to Jennings GP, I want it to stick in the corners. It already likes to break that back tire loose when I get into it. I don't want to have her slip out from under me through a curve.
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Spectrum
Posted on Wednesday, July 09, 2008 - 10:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I attended the Keith Code school recently. He makes it a point to talk about folks modifying designs to get the bike to handle correctly.

Bottom line is Keith will tell you the first and most significant change you can make to improve handling is get training. In other words most problems are improper rider positioning or input.

Most modern motorcycles are pretty solid designs with extensive engineering and testing. If your having problems, it is most likely you and not the bike.
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Hitman44139
Posted on Wednesday, July 09, 2008 - 10:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Training for sure! also read this kinda helps. Interesting

http://www.stevemunden.com/friction.html
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Barker
Posted on Wednesday, July 09, 2008 - 12:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

A smaller (170) rear tire can make you turn faster. (Old racer trick)
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Crashstp
Posted on Wednesday, July 09, 2008 - 01:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

what are you running for tire pressures?
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Bigeasy
Posted on Wednesday, July 09, 2008 - 02:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Also with the smaller rim width might pinch the 190 and make it have a taller profile. Could cause problems with the tire hitting the stock exhaust. I also heard somewhere that during the development of the bike they had tried a 190. The test riders like the 180 better.

By the way I run 30front and 29rear psi on the track. Seems to work well but it will still spin up coming off the corner onto the straight. I think the way to go is get a extra set of rims to run sticky tires for the track.
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Barker
Posted on Wednesday, July 09, 2008 - 02:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

what tires are you sliding on?
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