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Old 07-30-2009, 06:21 PM   #21
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They do that when you ride slow.
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Old 07-30-2009, 06:21 PM   #22
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Holy Chit!!
Haha. AJ see slowblack's sig? That chit is true true true.
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Old 07-30-2009, 06:22 PM   #23
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whenever u do figure out what the real cause is, id love to know...the with getting off my bike after running high triples to see parts of the tire missing


The REAL cause is exactly that: low tire pressure / extended high speed running.
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Old 07-30-2009, 06:22 PM   #24
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Quote:
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You've been lucky then.

When we do top speed runs at Goliad or Bonneville, we run the tires at the MAX pressure of 42 psi. COLD to prevent overheating / coming apart.

Even the Mfrs. recommend max pressures for extended top speed operatione.
hmm, interesting, i wouldnt mind running top psi, but im just scared that when i get into a turn, its not going to be forgiving...

im not scared off from bridgestone, just yet, ill buy another set, but jeez, it kinda freaked me out when i saw this, i first thought i hit something, or ran over something, but the tire was so hot when i got back i couldnt keep my hand on it for over a couple seconds, felt like it came right off the warmers
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Old 07-30-2009, 06:24 PM   #25
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Originally Posted by cdill35 View Post
They do that when you ride slow.
i know, i need to step my game up, maybe i need gear 7 to switch into, im going to talk to honda about improvements on there 2010 model
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Old 07-30-2009, 06:24 PM   #26
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Here's the thing, the max pressure is set for STRAIGHT LINE running, obviously it won't have as much side grip.

The other thing to consider is that was a USED race take off tire.
I'd be suspect to the number of heat cycles it had in it.
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Old 07-30-2009, 06:24 PM   #27
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Sooooo Much I need to learn about tire pressure!!
noob
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Old 07-30-2009, 06:24 PM   #28
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i am not questioning patricks advice here, he knows his , he always has good info when i come in and talk to him

thanks again
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Old 07-30-2009, 06:24 PM   #29
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FWIW, I've seen just about every brand of tire have similar failures when run at high speed for extended times and not at max pressure.
Keep in mind, the highest speed rating on a motorcycle tires is a "W" rating, good for 168 mph, which is probably less than what your CBR will do......
The speed rating is over a certain distance at that speed, not just a given mph, do you have any idea what that distance may be Patrick??
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Old 07-30-2009, 06:25 PM   #30
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i know, i need to step my game up, maybe i need gear 7 to switch into, im going to talk to honda about improvements on there 2010 model


No, you just need to bring your out to the track.
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Old 07-30-2009, 06:25 PM   #31
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Quote:
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Here's the thing, the max pressure is set for STRAIGHT LINE running, obviously it won't have as much side grip.

The other thing to consider is that was a USED race take off tire.
I'd be suspect to the number of heat cycles it had in it.

no no, your correct about everything, except for it was a brand new tire when put on this bike, never seen warmers or the track...
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Old 07-30-2009, 06:25 PM   #32
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No, you just need to bring your out to the track.
im too slow :(
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Old 07-30-2009, 06:26 PM   #33
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Quote:
Originally Posted by Patrick View Post
Can you say low tire pressure?

I can.

Extended high speed running on ANY tire with low pressure will do that.

You said "Banzai", exactly how fast were you going and for how long?

Looks like the tire overheated.
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Old 07-30-2009, 06:26 PM   #34
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The speed rating is over a certain distance at that speed, not just a given mph, do you have any idea what that distance may be Patrick??
Not off the top of my head, but knowing slowback like I do, I'd have to say he probably exceeded BOTH.
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Old 07-30-2009, 06:28 PM   #35
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Not off the top of my head, but knowing slowback like I do, I'd have to say he probably exceeded BOTH.
haha, im probably saying your correct patrick lol...but not for sure, remember guys, i was following all posted speeds/laws
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Old 07-30-2009, 06:28 PM   #36
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Quote:
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Here's the thing, the max pressure is set for STRAIGHT LINE running, obviously it won't have as much side grip.

The other thing to consider is that was a USED race take off tire.
I'd be suspect to the number of heat cycles it had in it.
Which begs the noob question, how many cycles would u run on a set of 002s, slower advanced pace??


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Old 07-30-2009, 06:29 PM   #37
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Tell Carlos he is an idiot

This is what happens when you run too low of pressure for extended speed runs. Ever been to the salt flats? Those guys run 38-40 psi in their tires MINIMUM. What it looks like to me is due to the low pressure, the tire overheated in specific spots on the tire.....i.e. as you were probably getting airborne over the overpasses and the tire spinning and regripping as it crashed back to the pavement. Bridges and overpasses also contract and buckle somewhat causing a rough ride over them as well. Crossing that at high speeds can cause the tire to loose traction & regain it suddenly....also causing extreme local heat build up. Again the pressures you listed were too low either way, but more air would have aided in the tire being able to withstand the abuse of sustained speed and extreme heat build up. The fact that it was a racetire was probably what saved you from having a failure all together.

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Old 07-30-2009, 06:30 PM   #38
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im too slow :(
I kinda doubt that!
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Old 07-30-2009, 06:30 PM   #39
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Quote:
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Tell Carlos he is an idiot

This is what happens when you run too low of pressure for extended speed runs. Ever been to the salt flats? Those guys run 38-40 psi in their tires. What it looks like to me is due to the low pressure, the tire overheated in specific spots on the tire.....i.e. as you were probably getting airborne over the overpasses and the tire spinning and regripping as it crashed back to the pavement. Bridges and overpasses also contract and buckle somewhat causing a rough ride over them as well. Crossing that at high speeds can cause the tire to loose traction & regain it suddenly....also causing extreme local heat build up. Again the pressures you listed were too low either way, but more air would have aided in the tire being able to withstand the abuse of sustained speed and extreme heat build up. The fact that it was a racetire was probably what saved you from having a failure all together.

thank so much for the info john, now to correct this problem, what psi cold should i run in the future on this tire for doing this kind of "rides"

i dont remember getting airborne last night, that only happens on backroads over hills
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Old 07-30-2009, 06:31 PM   #40
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Which begs the noob question, how many cycles would u run on a set of 002s, slower advanced pace??


/thread jack
Till they look shagged or start moving around.
There is no hard and fast answer on that one.
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