Repairing Tyres after a puncture..

On Sat, 27 Mar 2004 12:45:28 -0000, turkeytickler <[email hidden]>

Quoted message said:

Hi all

Ive just run my new Conti GP3000s over a load of flint in
my back yard whilst hosing the bike down and I now have a
lovely 1/3 cm long cut in the front and a very empty inner
tube :-(.

Since this tyre just less than 100 miles on it I would
really like to be able to repair it.

Does anyone have any tips for repairing smallish cuts in a
tire? - its right on the tread, no where near the
sidewalls...

Patch it just like you would a tube but with quite a
large patch.

I don't think I'd want to put 100psi in it, but it's worked
on mtb tyres before.
--
"We take these risks, not to escape from life, but to
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On Sat, 27 Mar 2004 12:45:28 -0000, turkeytickler <[email hidden]>

wrote in message : said:

Does anyone have any tips for repairing smallish cuts in a
tire? - its right on the tread, no where near the
sidewalls...

A Park Tyre Boot will repair the cover OK.

--
Guy
===
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turkeytickler said:

Ive just run my new Conti GP3000s over a load of flint in
my back yard whilst hosing the bike down and I now have a
lovely 1/3 cm long cut in the front and a very empty inner
tube :-(.

Since this tyre just less than 100 miles on it I would
really like to be able to repair it.

Does anyone have any tips for repairing smallish cuts in a
tire? - its right on the tread, no where near the
sidewalls...

It should be thrown away if a cut that long is all the
way through. No safe repair that will last is possible
without greatly spoiling the tyre's performance. I know
it's a bummer but it's happened to most of us. Put it
down to bad luck.

Park Tyre Boots and inner tube patches on high pressure
tyres eventually crack or split.

~PB

On Sat, 27 Mar 2004 16:31:02 -0000, "Pete Biggs"
<[email hidden]> wrote in message
<[email hidden]>:

Quoted message said:

Park Tyre Boots and inner tube patches on high pressure
tyres eventually crack or split.

Sure. I have one in one of my Stelvios running at 120psi,
it's been there for about 500 miles thus far. I'll let you
know when it splits.

--
Guy
===
May contain traces of irony. Contents liable to settle after
posting. chapmancentral.co.ukchapmancentral.co.ukOpen ↗

88% of helmet statistics are made up, 65% of them at
Washington University

"turkeytickler" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Hi all

Ive just run my new Conti GP3000s over a load of flint in
my back yard whilst hosing the bike down and I now have a
lovely 1/3 cm long cut in the front and a very empty inner
tube :-(.

Since this tyre just less than 100 miles on it I would
really like to be able to repair it.

Does anyone have any tips for repairing smallish cuts in a
tire? - its right on the tread, no where near the
sidewalls...

Thanks

Chris

--
Using M2, Opera's revolutionary e-mail client:
opera.comm2Open ↗

Do you have an old (high performance) cover to hand? Or a
tub - they were best for what I'm about to describe, so
if you've got one, use it. If not, any light tyre like
the GP is ideal.

Just cut out a section of the casing of the old tyre - use
the sidewall, not a section that has any tread or sidewall
protector strip. Coat it in good (TipTop?) rubber solution,
and also coat the inside of the (new-ish) cover you're
trying to repair. Let both lots of solution dry, then press
the "patch" into place. You can then refit the tyre more or
less straight away.

I've had similar problems to yours, and have got thousands
of miles out of them using this method. The section of
casing is *far* stronger than either a conventional patch
(which will flex much too much, and will not be capable of
operating at the pressure required) or the Park Tyre Boot,
and will last as long as the rest of the tyre.

The critical bits are 1/. Cutting a decent bit of casing
to the right size to do the job, and 2/. LETTING THE
SOLUTION DRY!!!

I certainly wouldn't throw the tyre away, but, equally, I
would keep a close eye on the cut. This will not be easy, if
you fix the patch carefully - you'll hardly know it's there!

Good luck.

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Just zis Guy said:

Quoted message said:

Park Tyre Boots and inner tube patches on high pressure
tyres eventually crack or split.

Sure.

Sure do, IME.

Quoted message said:

I have one in one of my Stelvios running at 120psi, it's
been there for about 500 miles thus far. I'll let you know
when it splits.

Please do, that could be quite soon. I got about 150 miles
out of a Park TB on a rear Vittoria Open Corsa 23 at 125psi.
They are meant for emergency use only and eventually go
brittle, and will stop the tyre flexing so well at that
point. The thickness and width (and porosity?) of the tyre
might have something to do with how well they survive.

~PB

I said:

[Park Tyre Boots] are meant for emergency use only and
eventually go brittle, and will stop the tyre flexing so
well at that point.

I mean they'll do that anyway, before they go brittle.

~PB

Just zis Guy said:

Pete Biggs wrote in message

Quoted message said:

Park Tyre Boots and inner tube patches on high pressure
tyres eventually crack or split.

Sure. I have one in one of my Stelvios running at 120psi,
it's been there for about 500 miles thus far. I'll let you
know when it splits.

I had a couple in the Stelvios on the Speedmachine, which
had been there for a couple of months of commuting and a
further couple of months sitting around. The one in the
front tyre, covering a cut in the tread, caused a Several of
visits from the P+nct+r+ Fairy before I gave up and replaced
the tyre. The one in the rear tyre, patching a split in the
sidewall, went KA-BLOOEY as I was accelerating onto London
Bridge, overtkaing a bus at 40 km/h. Check frequently would
be my advice...

--

Dave Larrington - legslarry.beerdrinkers.co.uklegslarry.beerdrinkers.co.ukOpen ↗
===========================================================
Editor - British Human Power Club Newsletter
bhpc.org.ukbhpc.org.ukOpen ↗
===========================================================

Exactly what I did with my MTB tyre, my reasoning was
that a section of a racing tyre suitable for 120psi would
be suitable in a MTB running between 40 and 60psi
dependant on use

Repair lasted the life of the tyre

Steve

Quoted message said:

Do you have an old (high performance) cover to hand? Or a
tub - they were best for what I'm about to describe, so if
you've got one, use it. If not, any light tyre like the GP
is ideal.

Just cut out a section of the casing of the old tyre - use
the sidewall, not a section that has any tread or sidewall
protector strip. Coat it in good (TipTop?) rubber solution,
and also coat the inside of the (new-ish) cover you're
trying to repair. Let both lots of solution dry, then press
the "patch" into place. You can then refit the tyre more or
less straight away.

I've had similar problems to yours, and have got thousands
of miles out of them using this method. The section of
casing is *far* stronger than either a conventional patch
(which will flex much too much, and will not be capable of
operating at the pressure required) or the Park Tyre Boot,
and will last as long as the rest of the tyre.

The critical bits are 1/. Cutting a decent bit of casing
to the right size to do the job, and 2/. LETTING THE
SOLUTION DRY!!!

I certainly wouldn't throw the tyre away, but, equally,
I would keep a close eye on the cut. This will not be
easy, if you fix the patch carefully - you'll hardly
know it's there!

Good luck.

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If critical, like you're in Africa or somewhere, you can sew
the rip with something really strong, like linen carpet
thread or dental floss, and then patch. A patch is
preferable in the rear tyre as a blow there is much less
dangerous.