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From: Peter Moss on 16 Nov 2009 21:53
Apparently most bike street tubless tires are designed to stay on the rim if
they go flat, a few aren't. In the sense that you can hobble along at
walking speed for quite a way and not wreck the rim. The tire will be
hooped, but at least it stays on the rim and the rims OK.

I had a link once to a table giving this information but lost it.

I was wondering if anybody has a link to this info if they wouldn't mind
posting it.

Thnx

Pete.


From: The Older Gentleman on 17 Nov 2009 02:10
Peter Moss <PMoss(a)NoWay.net> wrote:

> Apparently most bike street tubless tires are designed to stay on the rim if
> they go flat, a few aren't. In the sense that you can hobble along at
> walking speed for quite a way and not wreck the rim. The tire will be
> hooped, but at least it stays on the rim and the rims OK.

It's not like they're deliberately *designed* to stay on the rim. It's
just that modern radial tyres need really stiff sidewalls, and also have
a low aspect ratio, so they just tend to do so naturally.

Never *heard* of the table to which you allude.

--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com
From: Nagarjuna's Catuskoti clawed me! on 17 Nov 2009 10:22
On Nov 16, 6:53 pm, "Peter Moss" <PM...(a)NoWay.net> wrote:
> Apparently most bike street tubless tires are designed to stay on the rim if
> they go flat, a few aren't. In the sense that you can hobble along at
> walking speed for quite a way and not wreck the rim. The tire will be
> hooped, but at least it stays on the rim and the rims OK.

I once rode about ten miles on a completely deflated Michelin front
tire, but I wouldn't want to try that on a deflated rear tire.

Bridgestone has an English language pamphlet on their Japanese
language website which states that their tires have had "run flat"
capability since the 1980's.

You can find the pamphlet if you google for "mcintroe.pdf"

(If "The Older Gentlman" wants to argue with Bridgestone engineers,
he's welcome to do some investigative reporting, instead of
bullshitting with opinions on Usenet.)

In general though, you can tell if a tire is likely to stay on the
rim. Radials, with a
low, stiff sidewall generally will stay on the rim even if deflated.

Bias-ply tires with a taller profile and very flexible sidewalls might
stay on the rim, but it would be very hard to control the motorcycle
once they were flat and the
sidewalls curled down into the drop center of the rim.

From: The Older Gentleman on 17 Nov 2009 10:31
Nagarjuna's Catuskoti clawed me! <macmiled(a)gmail.com> wrote:

> Bridgestone has an English language pamphlet on their Japanese
> language website which states that their tires have had "run flat"
> capability since the 1980's.

No, it doesn't. We've done this before.
>
> You can find the pamphlet if you google for "mcintroe.pdf"

Yes, you can.
>
> (If "The Older Gentlman" wants to argue with Bridgestone engineers,
> he's welcome to do some investigative reporting, instead of
> bullshitting with opinions on Usenet.)

I'm not arguing with them, I'm arguing with you. They do not state their
tyres have run flat capability.

Read the file yourself.

End. Of.


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com
From: The Older Gentleman on 17 Nov 2009 10:32
The Older Gentleman <totallydeadmailbox(a)yahoo.co.uk> wrote:

> > Bridgestone has an English language pamphlet on their Japanese
> > language website which states that their tires have had "run flat"
> > capability since the 1980's.
>
> No, it doesn't. We've done this before.

<Bad form posting>

http://groups.google.com/group/rec.motorcycles.tech/browse_thread/thread
/9a8211023fa13a4b


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com
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