Motorcycle Racing Forum

Racing Discussion => Racing Discussion => Topic started by: wirehairs2 on April 22, 2009, 05:13:59 PM

Title: Tire wear
Post by: wirehairs2 on April 22, 2009, 05:13:59 PM
Will tearing smooth out on a tire? These were take offs from another bike . I would like to use this tire as it still has alot of rubber left. Someone told me that once the tire does this it will continue even on a bike that is properly set up. tire is from last season, kept in heated garage through the winter.

any in put would be appreciated.


Title: Re: Tire wear
Post by: Sobottka on April 22, 2009, 06:19:30 PM
yes and no, just depends... they will, if you have a good set-up and conditions are right for that tire , migrate to the edge of the tire but they probably won't dissapear totally.   
Title: Re: Tire wear
Post by: wirehairs2 on April 22, 2009, 07:14:35 PM
will the grip be compromised to any degree?
Title: Re: Tire wear
Post by: honda60071 on April 22, 2009, 07:35:34 PM
On this topic I ran BT003 @ CMP over the weekend and the right side is twice as bad compared to the left. Is CMP that bad on the right or is my setup all jacked up?
Title: Re: Tire wear
Post by: MELK-MAN on April 22, 2009, 07:36:51 PM
grip has already been diminished once a tire has cold/hot tear. Not to "0", but less than a properly worn tire. If i were not wanting to spend cash on a new tire, i would run that one..just keep in mind it is not new.

Yes, CMP is much harder on the right than the left. We saw 20+degF differences in the right side tire temp from the left. More on the rears..
Title: Re: Tire wear
Post by: wirehairs2 on April 22, 2009, 07:54:07 PM
Thanks for the help :thumb:
Title: Re: Tire wear
Post by: apriliaman on April 22, 2009, 11:42:54 PM
I was able to use the same rear tire from 4 races and 1 practice at jennings and 1 practice and 7 races at carolina.I beet my lap record by almost 2 sec on both tracks.At the last race after all that mileage i was still able to go within 1 sec of my best of the whole weekend.While my front was almost worn out just from the 7 races and 1 practice at carolina.My rear wore out real smooth.
Title: Re: Tire wear
Post by: MELK-MAN on April 23, 2009, 11:57:47 AM
Quote from: apriliaman on April 22, 2009, 11:42:54 PM
I was able to use the same rear tire from 4 races and 1 practice at jennings and 1 practice and 7 races at carolina.I beet my lap record by almost 2 sec on both tracks.At the last race after all that mileage i was still able to go within 1 sec of my best of the whole weekend.While my front was almost worn out just from the 7 races and 1 practice at carolina.My rear wore out real smooth.

setting new personal bests is ALWAYS fun, and that is some great wear appriliaman. I would add however "DIsclaimer.. Do not try this on a 600 or big bike".. lol..
Title: Re: Tire wear
Post by: TommyG on April 23, 2009, 12:19:28 PM
Quote from: apriliaman on April 22, 2009, 11:42:54 PM
I was able to use the same rear tire from 4 races and 1 practice at jennings and 1 practice and 7 races at carolina.I beet my lap record by almost 2 sec on both tracks.At the last race after all that mileage i was still able to go within 1 sec of my best of the whole weekend.While my front was almost worn out just from the 7 races and 1 practice at carolina.My rear wore out real smooth.
Also this post could have ended with ........  "Then I crashed and destroyed my $10K dollar racebike because I left my tires on too long!"
Title: Re: Tire wear
Post by: spyderchick on April 23, 2009, 12:21:47 PM
Quote from: TommyG on April 23, 2009, 12:19:28 PM
Also this post could have ended with ........  "Then I crashed and destroyed my $10K dollar racebike because I left my tires on too long!"

...and the voice of experience rears it's ugly head... :biggrin:
Title: Re: Tire wear
Post by: apriliaman on April 24, 2009, 09:01:29 PM
well i did go down at jennings turn 13.My front tire was just starting to look like the one in your pic.i didnt notice it only after i took it off,so it was very hard to see.it was the first lap so maybe it was cold.
Title: Re: Tire wear
Post by: skiandclimb on April 25, 2009, 10:02:51 AM
I pulled 4 td's and 4 races on a set of 002 mediums last season. I know tire wear is a concern for everyone, but I honestly feel that people tend to freak out about the subject, and many change out their tires waayyy before they are done. BTW-I'm not promoting the use of a tire until it is dangerous by any means!
Title: Re: Tire wear
Post by: roadracer162 on April 25, 2009, 09:27:55 PM
Tire wear is really dependent on what you are riding and how you are riding. My Ducati 800 is much harder on tires than my FZR600. Although I am told that my FZR is a faster bike.

I race 4 sprints on a new set and then I use it for another several sessions. In all I am able to get about 100 laps on the Bridgestone rear slick before the rubber is totally gone. My gauge of the usable life of a tire is subjectively not too much loss of traction, and then objectively lap times that are 1 to 1 1/2 seconds off my average on fresh tires.

I have been told, and I believe it; if I want to learn how to go fast, then put fresh tires on and go fast. Being on old or worn tires won't make ytou fast but I do learn how to slide the bike at slower speeds.

Mark
Title: Re: Tire wear
Post by: apriliaman on April 25, 2009, 11:39:36 PM
About 5 years ago i was faster on old tires then new tires.I just could not go fast on a fresh new tire.I was even using peoples takoffs for the whole season.I needed at least 10 laps or more to go fast.Now i can go fast on new tires and can do the same laptimes from lap 1 to lap 50 like in a team challenge race.