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[Twolanerider]

Sure glad that you're O.K.  Not sure if I missed this thread or if it just shot to six pages real quick.

The two most important things on my bike are my tires and my brakes......everything else is secondary.  Also, as the tire wears down, the more it wears, the faster it wears.  So what looks like it may have another thousand miles left on it may only have a couple hundred miles on it in reality.  Not sure what, in the compound, makes it wear like that, but it does.  Of course speed or twisties would only accelerate that wear.

It's not a question of the tire's compound somehow being softer closer to core as opposed to out on the tread JC.  At least not appreciably so to account for accelerated wear.  Biggest thing is that the tire just gets hotter.

Deep tread allows a channel for air flow.  Air flow is cooling.  Once tread gets very low or nonexistent you've got much greater surface area of the tire in direct contact or nearly direct contact with the pavement.  That'll make the tire run hotter.  That'll make it wear faster.

[reo]

It's not a question of the tire's compound somehow being softer closer to core as opposed to out on the tread JC.  At least not appreciably so to account for accelerated wear.  Biggest thing is that the tire just gets hotter.

Deep tread allows a channel for air flow.  Air flow is cooling.  Once tread gets very low or nonexistent you've got much greater surface area of the tire in direct contact or nearly direct contact with the pavement.  That'll make the tire run hotter.  That'll make it wear faster.

I'm sorry Don but I'm not buying your theory of the tread or lack of changing the tires ability of keeping it cool. My opinion is that because of the load verses the size of the tires on these bikes load causes a heat build up especially on a long ride when bagged up like on the trips we take. I do know that the compound on a tire can be changed by heating it up and cooling it down from my racing days, heck you've seen cup cars scrub in tires to get them set for the race haven't you. I believe that by running these tires like we do over and over again we actually make the surface softer causing the tire to wear more quickly as they get older, add to that the tire gets harder due to less rubber being there causing a handling problem like were discussing here. When I got back from my last long ride I couldn't believe after feeling both tires how hot that back tire was getting, I now run my back tire at maximum pressure on long trips. Maybe I'm out to lunch here but please comment if you have more accurate info.

Roy....

[Twolanerider]

I'm sorry Don but I'm not buying your theory of the tread or lack of changing the tires ability of keeping it cool.

Roy, it's not the only thing but it does factor in.  And it's not my theory.  Came from a structrual dynamacist teaching a class I took from Goodyear several years ago.  It's by no means the only factor.  But it is a compounding (pardon the pun) factor that then impacts on everything else that's going on.

[reo]

Roy, it's not the only thing but it does factor in.  And it's not my theory.  Came from a structrual dynamacist teaching a class I took from Goodyear several years ago.  It's by no means the only factor.  But it is a compounding (pardon the pun) factor that then impacts on everything else that's going on.

Not trying to totally discredit your explanation as a possibility because I believe I could be wrong but I also remember Nascar trying rain tires (with tread) about a decade ago having a problem with the tires getting too hot. It's so funny how everyone has a different analysis of a situation that there is no clear cut answer.

[ultrafxr]

Not trying to totally discredit your explanation as a possibility because I believe I could be wrong but I also remember Nascar trying rain tires (with tread) about a decade ago having a problem with the tires getting too hot. It's so funny how everyone has a different analysis of a situation that there is no clear cut answer.

Just checked in with Al Gore.  He said it is all due to global warming.

[Twolanerider]

Not trying to totally discredit your explanation as a possibility because I believe I could be wrong but I also remember Nascar trying rain tires (with tread) about a decade ago having a problem with the tires getting too hot. It's so funny how everyone has a different analysis of a situation that there is no clear cut answer.

Too true.  Here I'm just guessing and basing it on no one's instruction.  But I'd wonder how much of an apples to oranges comparison we'd be making with tires designed for the track in comparision to tires designed for the street?

Those are significantly different compounds with significantly different properties.  Ability to handle heat, just how soft they are, and a variety of other things are all much different.  That structural dynamics class I sat through was really bent toward street applications as it was spooling me up for some testimony to be given later. 

Hopefully the company guy wasn't spinning the company line too hard.  Some independent verification later of the main points of his discussion suggested he wasn't.  But when you're being tutored on things beyond your own background it always pays to check it out a little  .

[Twolanerider]

Just checked in with Al Gore.  He said it is all due to global warming.

Well crap.........

[reo]

Just checked in with Al Gore.  He said it is all due to global warming.

Maybe MFG could sum it up.

[ccr]

Maybe MFG could sum it up.

If he were still a member here, I do believe he would have the answer.  Not that we could read to the end of the post to figure it all out, but he would have the answer.    

[Twolanerider]

If he were still a member here, I do believe he would have the answer.  Not that we could read to the end of the post to figure it all out, but he would have the answer.    

Definitely a blast from the past MrsWe.  He'd have explained, cut and pasted 17 sources detailing it, remotely planned the Canada ride and tightened the whole thread's lug nuts for good measure.  You suppose he's still out there in the hills someplace curled up behind a scope?

[reo]

Definitely a blast from the past MrsWe.  He'd have explained, cut and pasted 17 sources detailing it, remotely planned the Canada ride and tightened the whole thread's lug nuts for good measure.  You suppose he's still out there in the hills someplace curled up behind a scope?

I would bet he still monitors this forum.

[SEULTRA]

Barry,
I just saw this post and am glad you're not badly damaged. Sux to have your bike down coming into riding season but I know you'll use the time wisely (planning what iteration of the melon you'll bring to life). I was questioning how much longer I was going to leave my aging rear tire on the scoot... you gave me the answer. Thanks. 

[Screamin]

Barry, just saw the thread and sorry about your mishap but so very glad you are OK.  Take care of that melon buddy.  Ain't that many out there and as you know I killed one last year in MV.  No fun and not something to be repeated.

It's the green Harley thing.

[displacing air]

Well...here is a pic.

I really am missing my bike...now I know why some of  you have two!

DisAir

[naitram]

OUCH, your one lucky guy to have walked away from that