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Old August 23rd, 2017, 04:15 PM   #1
jrshooter
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flipping dot race tires

wanted to do a poll, dont know how.
anybody else flipping thier dot race tires?
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Old August 23rd, 2017, 04:33 PM   #2
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Quote:
Originally Posted by jrshooter View Post
wanted to do a poll, dont know how.
anybody else flipping thier dot race tires?
I don't, as I'm usually wearing both sides fairly evenly. There are times I could probably get one more day by flipping, but for me it's just not worth the effort.
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Old August 23rd, 2017, 04:39 PM   #3
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im a one track pony, 11 lefts 4 rights
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Old August 23rd, 2017, 06:27 PM   #4
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I've done it on street tyres many times and recently my Alpha-13s. I think with modern radials, it's not so much of concern as old days with bias-ply tyres.
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Old August 24th, 2017, 05:51 AM   #5
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I have no problem flipping tires if I need to. Especially with the 250 Ninja being light and low horsepower.
The good thing about the current race series that I'm in is that we have four different track configurations and we alternate running clockwise & counterclockwise so no flipping necessary.
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Old August 24th, 2017, 06:23 AM   #6
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I'm curious about the term "dot race tires". I thought race tires were normally non-DOT rated, since they don't see public roads. Are these DOT rated tires that are also suitable for the track?
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Old August 24th, 2017, 06:25 AM   #7
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Quote:
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I'm curious about the term "dot race tires". I thought race tires were normally non-DOT rated, since they don't see public roads. Are these DOT rated tires that are also suitable for the track?
They are race compound tires that pass DOT regulations, but offer little to no wet support.
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Old August 24th, 2017, 07:03 AM   #8
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Quote:
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They are race compound tires that pass DOT regulations, but offer little to no wet support.
Thanks. I need to look into this I guess.
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Old August 24th, 2017, 07:49 AM   #9
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I will only flip "my own" tires purchased from new. I never flip take offs no matter what tire they are. dot - slicks. I find flipping is very track dependant.
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Old August 24th, 2017, 04:34 PM   #10
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Quote:
Originally Posted by Triple Jim View Post
I'm curious about the term "dot race tires". I thought race tires were normally non-DOT rated, since they don't see public roads. Are these DOT rated tires that are also suitable for the track?
Quote:
Originally Posted by cbinker View Post
They are race compound tires that pass DOT regulations, but offer little to no wet support.
They're basically race tyres with minimalist tread-pattern to satisfy DOT requirements. Not that the little amount of tread will do much in rain anyway. I did an rain trackday over Easter and my tyres had as much traction as plastic Green Machine or Big Wheel tyres!

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Old August 24th, 2017, 05:27 PM   #11
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Some tires don't really work well flipped, Dunlops mainly. They can begin to delaminate because of the way the plies are laid down internally.

With pirellis, no problem. Not sure about the Dunlop A13's though, haven't heard any issues and never flipped my own.
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Old August 24th, 2017, 05:36 PM   #12
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Quote:
Originally Posted by JacRyann View Post
They're basically race tyres with minimalist tread-pattern to satisfy DOT requirements. Not that the little amount of tread will do much in rain anyway. I did an rain trackday over Easter and my tyres had as much traction as plastic Green Machine or Big Wheel tyres!

https://youtu.be/-ZcbiC4Wh7g
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Old August 24th, 2017, 05:52 PM   #13
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That was some pretty good lean angle just before the crash. Like dry weather lean angle.
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Old August 24th, 2017, 06:05 PM   #14
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That was some pretty good lean angle just before the crash. Like dry weather lean angle.
that was my first rain ride, and i thought i took a lot off. thats 15 mph slower than a dry track. now i wont ride in the rain.
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Old August 24th, 2017, 06:58 PM   #15
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Up to the crash, it looked like you were riding very conservatively, but in that last turn it didn't look so conservative.

I know what you mean. I did a couple laps on the Dragon this spring when 129 was wet, and I can't say I enjoyed it much.
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Old August 25th, 2017, 08:37 AM   #16
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That corner sucks! Even when dry!

Link to original page on YouTube.

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Old August 28th, 2017, 08:07 PM   #17
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Quote:
Originally Posted by Zaph42 View Post
Some tires don't really work well flipped, Dunlops mainly. They can begin to delaminate because of the way the plies are laid down internally.

With pirellis, no problem. Not sure about the Dunlop A13's though, haven't heard any issues and never flipped my own.
That is not entirely true for Dunlops these days. I know they now have some race tires they specifically designed to be flipped if desired.
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