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Discussion Starter #1
I'm runnning D207s. Yesterday, the rear
tire started slipping alot. I am very
very close to the tread wear indicators.
Checked all the normal things... pressure
etc.. Everything is fine. The tire is
maybe a month old. Has anyone else noticed
that when you get down to the end of the
tire but NOT through the top ply that these
things loose traction?? I almost bought it
yesterday and I trying to figure out why??
The tire was warmed up too.

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Stylin - Profilin', Got an R1 so I'm SMILIN!!
 

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Chris,


I'm NOT goofin with you or anuthing, but...D207s are FAMOUS for sliding...The reason they make a great tire is that they SLIDE and don't break loose like some lesser quality tires....Just what I've heard!!
................Jimmy G......................

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Discussion Starter #3
I know about that bro, they are known very
well for their predictable slide.. This one
was not predictable it was very un called
for... I'm thinking that it's b/c the
tread is almost gone but I have never
expirienced this before so I was hoping
someone could set me straight if they have
had a similar expirience.... or they know
something I don't about tires which is very
possible with all the racers here.

Thanks though!! Chris :cool:



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Stylin - Profilin', Got an R1 so I'm SMILIN!!
 

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Chris, come on man, what do you think is gonna happen.

Get a new set of same Tires and you will be all set.

Tires age like everything else. As the tires ages, the rubber changes its characteristics. I dont see anything very odd here as it sounds like you push hard on "the envelope" when you ride. Ride like that alot and you will break the envelope someday. Get fresh meats before those tires let you down for real.

I dont ride THAT hard so i (and many others here) dont need to worry about how long our tires maintain a nice predictable slide.



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Fear Green.
 

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Chris,

It has something to do with flexibility. As you wear the tread it flexes less, because there is less there :confused: or something like that. Plus I doubt the tread at the end of the tread life is made as sticky as the tread when new. Someone once explained it all to me when I asked the same question about car tires and it made sense. Really when you ride as hard as you do, you really shouldn't go all the way to the tread bars.

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Colin
FloridaSportbikers
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Chris
I have nooticed the same thing on several occasions as the tyres wear down. I have had to change tyres many times in the past when they were nowhere near the wear markers. I believe that only the outer 3-4 mm on a high peformance tyre is grippy and as you approach the carcass, it becomes harder and less grippy. The R1 will really show up this tyre characteristic, more so than lesser powered bikes. I was getting wheelspin in the dry and when the tyres were warm on my last set of tyres after just 1600 miles (including 2 trackdays and a few dyno runs) and had to change them.
Don't know the physiscs behind it but I believe it certainly has to do with the flexibility of the tyre diminishing as wear increases.

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Tires also have a limited amount of heat cycles before they start to loose their grip. The composition of the rubber will be compromised as the tire continually heats up and cools down. I suggest that once you start riding on the new tires that you never stop. Blow all stop signs and traffic signals. Have someone stand on the side of the road with a gas can and have them hand it off to you as you ride by. Discard the empty can on the side of the mountain because you don't really care about littering you scumbag prick! Then get pulled over for doing 80 in a 45mph zone because of your bad karma from the afore-mentioned can tossing affair. Get new tires you cheap bastard! :D

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Ride Fast - Take Chances
 

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Chris,

I'm not sure but I think it has something to do with the poor handling characteristics of the R1. :rolleyes: :p :D

I'm just kidding of course. I would say that predictability does deminish somewhat with tread life.

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Ride Hard!

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Discussion Starter #9
<BLOCKQUOTE><font size="1" face="Aril, Helvetica, sans-serif">quote:</font><HR>Originally posted by cbr600f4gd:
Tires also have a limited amount of heat cycles before they start to loose their grip. The composition of the rubber will be compromised as the tire continually heats up and cools down. I suggest that once you start riding on the new tires that you never stop. Blow all stop signs and traffic signals. Have someone stand on the side of the road with a gas can and have them hand it off to you as you ride by. Discard the empty can on the side of the mountain because you don't really care about littering you scumbag prick! Then get pulled over for doing 80 in a 45mph zone because of your bad karma from the afore-mentioned can tossing affair. Get new tires you cheap bastard! :D

<HR></BLOCKQUOTE>

Too much coffee again Geoff?


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Stylin - Profilin', Got an R1 so I'm SMILIN!!
 

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Discussion Starter #10
This wasn't a slow diminish, this was one
day - Traction good - next day - traction
bad.

It seems the tire is hard as a rock!


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Stylin - Profilin', Got an R1 so I'm SMILIN!!
 

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I experienced the same thing on my last bike. All this time I thought I was sliding the rear tire around more and more because I was getting to be a hotshot biker.....

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-Yeeee-haaaaa!
 

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Discussion Starter #12
<BLOCKQUOTE><font size="1" face="Aril, Helvetica, sans-serif">quote:</font><HR>Originally posted by Irishbiker_R1:
Chris
I have nooticed the same thing on several occasions as the tyres wear down. I have had to change tyres many times in the past when they were nowhere near the wear markers. I believe that only the outer 3-4 mm on a high peformance tyre is grippy and as you approach the carcass, it becomes harder and less grippy. The R1 will really show up this tyre characteristic, more so than lesser powered bikes. I was getting wheelspin in the dry and when the tyres were warm on my last set of tyres after just 1600 miles (including 2 trackdays and a few dyno runs) and had to change them.
Don't know the physiscs behind it but I believe it certainly has to do with the flexibility of the tyre diminishing as wear increases.

<HR></BLOCKQUOTE>

That's what I was looking for, thought the
same thing. Thanks Bro. This tire is only
a month old so it's not age - and I've got a
few MMs before the tread wear marker.




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Stylin - Profilin', Got an R1 so I'm SMILIN!!
 

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I do ride my bike pretty hard. I only got 1700 miles on my last set. The front still has alittle more left but not much. I had to get a new rear. It was sliding all over.

I asked the Honda shop the SAME thing. You could see where the tire was slipping on the sides (both front and back). They said I could push alittle more but not much. Thats when they said I might want to go to a 207 take off's (more grip).

I don't think they are just tring to get me to buy the take off's (there not pushy like that) but they say if you want to push it go to the track.



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Dan F4 Red/Black
 

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Discussion Starter #14
Thanks to those who responded, especially
those who had a similiar expirience to share.

The reason I was asking was a result of this:

Last week I was doing a 2nd gear roll on
wheelie. Usually when I do this it's a very
controlled slow lift to verticle. Well the
bike got to about 45 degrees it launched
hard to about 95 immediatley. I was beyond
the balance point and I was convinced (I knew
) that I was going to flip the bike. Somehow
I managed to drop the throttle and thus the
front just in time. I got back on the throttle
so I landed the front pretty soft. All luck.
I've never been that close to looping before.
I truly KNEW that the bike was going to flip
and somehow it didn't. What I had figured
was that the tire broke and then regained
traction. That's why I posted the question
b/c I'm not going to stop doing what I do but
I want to be informed so I can do it carefully
as possible. I just wanted to see if anyone
had expirienced the same thing b/c it's hard
to read rear feedback when you are only on
the rear tire.

Thanks!
Chris


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Stylin - Profilin', Got an R1 so I'm SMILIN!!

[This message has been edited by chris_y2k_r1 (edited July 12, 2000).]
 

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Discussion Starter #16
<BLOCKQUOTE><font size="1" face="Aril, Helvetica, sans-serif">quote:</font><HR>Originally posted by tigerblade:
Look out, Biaggi! :D

<HR></BLOCKQUOTE>

Yeah, like that's it... and he was only a
250.. wuss! :D



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Stylin - Profilin', Got an R1 so I'm SMILIN!!
 

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Next time we want video! ;)

Last year a guy did a cool stand-up wheelie directly in front of me. It was 95 degrees, then 105, then 115, then... ouch!!! :D

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"Ray, when someone asks you if you are a god, you say YES!!!"

[This message has been edited by tigerblade (edited July 12, 2000).]
 

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Discussion Starter #18
Ouch is right bro! How did he fair??? Why
did he loop it?? Bummer man, I hate stories
like that.

Man I know, I know - I REALLY NEED TO GET
SOME VIDEO.

Chris


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Stylin - Profilin', Got an R1 so I'm SMILIN!!
 

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He was pretty okay. He wasn't really going that fast. He was dragging the license plate (not on the stock fender of course) then it kinda wiggled side-to-side and there he went. He was wearing long shorts and a T-shirt but I don't think he got much road rash at all. He got up and rode the bike home. This year he's also gone over the front doing a stoppie. It hasn't stopped him from doing stand-ups and stoppies; he just has some bodywork that doesn't quite match. :rolleyes:

Of course this stuff happens and luckily he hasn't really been hurt. It's not going to stop me from doing wheelies (still working on 2nd gear, it comes right back down). Just makes you remember to be careful (?) :)

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"Dad runs shine."

[This message has been edited by tigerblade (edited July 14, 2000).]
 

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Discussion Starter #20
Yeah, I HEAR you. I've been really lucky.
I haven't looped a bike front or back but I
do both wheelies and rolling stoppies.
I probably jynxed (SP) myself. I've come
lose though!! Live learn and hopefully live
so more.

Take Care!
Chris


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Stylin - Profilin', Got an R1 so I'm SMILIN!!
 
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