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Old Aug 27th 2018, 03:21 AM   #1
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Question Tire flipping

For those of you who ride track, have you ever had experience flipping your rear tire? The track by me, (NJMP Thunderbolt) is super right turn heavy, only 2 real lefts and because of this, the right hand side of the tire usually burns out MUCH faster than the left. I've heard others at the track mention it's possible to flip rear tires without a problem to even it out. I'm only skeptical because tires usually tell you what direction their rotation needs to be. What do you guys think, any experience? I run Pirelli superbike slicks, SC2.
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Old Aug 27th 2018, 03:32 AM   #2
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I bought my first set of new slicks in 6 years, and I have been tracking various bikes for the past 14 years. It is very common to "choose" the direction of rotation based on the condition of the tyre. I wouldn't worry about it at all. Having said this, I am doing fairly good lap times for a hobby racer on the used tyres, but might not risk it if I was a second or two faster... Which I hope to get with new tyres.
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Old Aug 27th 2018, 03:33 AM   #3
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I Ride: '16 Pani R, 1098R Bayliss, KTM1090R.
I do it all the time. Obviously its not as good as a new tyre, but you can maybe
get an extra 3-6 sessions out of them depending on how bad it was to start with.
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Old Aug 27th 2018, 03:34 AM   #4
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It's not recommended, the way the directional tire is constructed, it's meant to go in one direction the way the rubber/steel bands are all woven together. That's what the tire vendors will tell you, I have got away with it in the past before when I cared about squeezing that extra dollar.
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Old Aug 27th 2018, 05:18 AM   #5
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Contact the manufacture about flipping, due to how they roll the rubber on, it may come loose. Most DOT tires are directional for the water tread, but some have it for the way it was rolled and cured, so check it out first... BUT otherwise, flip it. Burn it up if its only for a day or so. I have done this trackside before and I know plenty that do this each track day
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Old Aug 27th 2018, 09:28 AM   #6
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The OP stated that he is running slicks. I run SC1 & SC2 and flip them often depending on which tracks I run. They are not a directional tire and as mentioned earlier you can get a few extra sessions.
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Old Aug 27th 2018, 02:25 PM   #7
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Originally Posted by Desmolvr View Post
The OP stated that he is running slicks. I run SC1 & SC2 and flip them often depending on which tracks I run. They are not a directional tire and as mentioned earlier you can get a few extra sessions.


I think they are actually directional as they have this indicator. But clearly you've done it without issues, do you push on the flipped tires? I want to extend the life on the tire but not if it means I have to back off the pace.


-Jack
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Old Aug 27th 2018, 05:41 PM   #8
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Depends on the tire. Most can be flipped and is pretty standard for tracks hard on one side bs the other. Dunlop slicks and gpa can be run both directions.
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Old Aug 28th 2018, 05:10 AM   #9
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Anyone else with Pirelli flipping experience? I reached out to a Pirelli vendor but haven't heard back. Kind of on the fence due to all the back and forth comments.


-Jack
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Old Aug 28th 2018, 09:25 AM   #10
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I have run both Dunlop and Pirelli slicks for race weekends and flipped the rear with no worries. I believe the newer Dunlops have bi-directional arrows on the rears so they are a given. Currently running the SC0's on the rear for the Pirelli and flip when needed and the vendor at the track has no issues with it.

I'm sure there are exceptions- like Daytona - or something out of the ordinary, though for normal practice sessions and sprint races, I will do the rear if needed. I wouldn't flip over and over and do 15 track days or anything like that. I am speaking of my SOP and for single race weekends only then it's new skins.

I do not and would not flip the front regardless.
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