PROBLEMS WITH DUNLOP RACE TIRE

[Super Dave]

We always did before because that's what the Dunlop tires always did.  Especially if you were more budget concious like myself.  It was never a problem.

Happens because of the way the tread is laid over the carcass and it meets in a place imperfectly.

Regardless, I've got great service from my Michelin tire guy locally, and at the national events.  There are good people at Dunlop.  I know them too.  I don't see that they are trying to screw you, but the Dunlops just do that.

If that brings you to ride on something like a neat Michelin, well, I like the Michelin's, and I hope you do too.

[jigmoore]

So you would ride the tire for a race ?

abso-friggin-lutely not!!!!  and that comes from a person who has no problem plugging a hole in a race tire (with a plug patch).  

i know too much about flow lines and stress risers and the rotational stresses on tires to even consider riding on that thing.

don't listen to the guys that said they rode on them and they were fine.  it would be the same as saying 'i drove with my eyes closed for a mile and i was fine....'

[HOTROD_316]

abso-friggin-lutely not!!!!  and that comes from a person who has no problem plugging a hole in a race tire (with a plug patch).  

i know too much about flow lines and stress risers and the rotational stresses on tires to even consider riding on that thing.

don't listen to the guys that said they rode on them and they were fine.  it would be the same as saying 'i drove with my eyes closed for a mile and i was fine....'

I am with you. I would not ride on it either and do not want anyone else to ride beside me on one, budget or not. Thanks for all the input. I do agree with him on something. There are good people at Dunlop I eat dinner with some of them at the races. That is not what I am saying. Just informing the race community of the problem. Thanks my wife said you had the best reply yet.

[251am]

And so we see why we NOW have a 200 run with 600s!!   :P

[HOTROD_316]

And so we see why we NOW have a 200 run with 600s!!   :P

True

[jigmoore]

True

i'm guessing mladin new about this long before we did.

[clarkie]

There are good people at Dunlop I eat dinner with some of them at the races.

i am guessing after you have been granstanding like this you wont be getting an invite to the Dunlop table any more  ;D

[HOTROD_316]

i am guessing after you have been granstanding like this you wont be getting an invite to the Dunlop table any more  ;D

Who cares.........

[jigmoore]

oh and don't buy the story that this is ok to have on a street tire...but won't happen on a track tire.

it's a long story to go into, but in their documentation they assess what might go wrong in a tire in what's called an fmea (failure mode element analysis).  they list everything that could go wrong in the process and assign 3 numbers to each potential failure mode.
severity 1-10 how bad is it if it happens
occurance 1-10 how often is it going to happen
detection 1-10 how likely will i catch it if it happens
you multiply these three numbers together and get an rpn (risk priority number) for each potential failure mode.  the idea is to try to minimize the risk (lower the rpn) on your highest rpn's.

a race tire that seperates and causes a crash - would probably be a 10 for severity (maybe a 9 since we have leathers and good runoff....but i am sure it is a 10)  and the occurance would be higher (more likely to occur) on a race tire.

the street tire would still have a 10 for severity, but may have a lower occurance since it sees lower stress by the average street rider.

but, i believe they are both z-rated...and both could make you lose control.  street/race tire....don't matter.

[clarkie]

Who cares.........

well you made a point of bringing it up....

[HOTROD_316]

well you made a point of bringing it up....

I know I was just saying if this makes them mad enough to not invite me to dinner then I will eat an MRE by myslef. ;D

[SliderPhoto]

Had the same problem with a Dunlop in 2002.