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Gluing Tread on a Tubular Casing

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simonvi...@hotmail.com

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Jan 23, 2009, 9:28:34 PM1/23/09
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Hi, I am going to attempt to re-tread a tubular tire, anyone got any
ideas about that? What is the best way to remove an old tread and
what kind of glue will stick a new tread (from a clincher) to a
casing.
I am hoping to remove a dried, cracked tread from a Challenge
Cyclocross tubular and then glue the tread from a Specialized or Kenda
clincher tire to the casing.
I have heard rumors that A. Dugast performs this service and I have
seen some custom tubulars so I know it is possible.
Cheers,
Simon

Carl Sundquist

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Jan 23, 2009, 9:57:46 PM1/23/09
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So check with Dugast. Alternately, you might see if Tire Alert can be of
assistance.

simonvi...@hotmail.com

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Jan 24, 2009, 12:51:51 PM1/24/09
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On Jan 23, 6:57 pm, Carl Sundquist <carl...@cox.net> wrote:

Thanks for that, I am doubtful as to whether Dugast will share any
secrets of the art with me, perhaps TireAlert will.

Carl Sundquist

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Jan 24, 2009, 11:14:38 PM1/24/09
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I'm not sure if it's still done, but there were mechanics at the six
days that would peel off an old, worn tread and glue on a replacement.

I would think that your big concern is that unlike gluing a new tread on
a tubular casing, a clincher almost invariably has the tire carcass and
tread molded together. Is your clincher carcass separate from the tread?

Stephen Bauman

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Jan 24, 2009, 11:46:04 PM1/24/09
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If the tread is dried and cracked, then the chances are that the exposed
sidewall is also dried out. Ditto for the latex inner tube. Even if the
polyester sidewall appears good, air and water may found their way to the
inner tube. You did say these were cyclocross tires, right? :=)

My first inclination is that you're wasting your time and money because
the inner tube may need replacement.

If the only thing that's bad are cracks on the rubber, try patching the
cracks with a modern day equivalent of Treadstop (the stuff never
worked). If no rubber is missing from the tread, you can use super glue
to hold the sides of the cut together. I've used super glue to repair
clincher tubes to repair pinholes near the valve. Once the cut holds,
leave the tire overnight to cure before applying pressure on the cut. You
can make small rubber plugs to replace divots.

However, be careful. Cracks in the rubber tread may also mean a slight
tear in the casing. You've got to inspect each one with a magnifying
glass. If you've got a tear in the casing, do you really want to boot the
tubular.

Stephen Bauman

simonvi...@hotmail.com

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Jan 25, 2009, 12:27:37 PM1/25/09
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No the tires I have laying around are not separate from the casing, I
figure that will be a huge problem when I attempt to glue it up. I
might be able to obtain some tubular tires with a torn casing and use
those treads.

simonvi...@hotmail.com

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Jan 25, 2009, 12:38:47 PM1/25/09
to

Thanks for all the input. I have had the itch to do this for a while
and I am not worried about wasting the time or money. I did a crummy
job of storing some tubular tires when I moved out from the coast to
the desert and the tires are definitely spares and not race worthy.
Some of the tires have had their tubes replaced by Tire Alert even
though the casings are pretty beat. The tires I have left over hold
air but are pretty worn. Most of the racing I did on them was on
fairly dry and gravelly courses and they chew up the tires pretty
bad. I don't plan on racing these tires or even doing any serious
riding on them.
Anyway, I figure it's worth a shot and if I have any leaky tubes, I
will try to plug it up with Tufo sealant just so I can see how they
roll around.
Simon.

A Muzi

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Jan 25, 2009, 4:11:48 PM1/25/09
to
>> simonvickers66 wrote:
>>> Hi, I am going to attempt to re-tread a tubular tire, anyone got any
>>> ideas about that? What is the best way to remove an old tread and what
>>> kind of glue will stick a new tread (from a clincher) to a casing.
>>> I am hoping to remove a dried, cracked tread from a Challenge Cyclocross
>>> tubular and then glue the tread from a Specialized or Kenda clincher
>>> tire to the casing.
>>> I have heard rumors that A. Dugast performs this service and I have
>>> seen some custom tubulars so I know it is possible. Cheers,
>>> Simon

> Stephen Bauman <sbau...@abt.net> wrote:
>> If the tread is dried and cracked, then the chances are that the exposed
>> sidewall is also dried out. Ditto for the latex inner tube. Even if the
>> polyester sidewall appears good, air and water may found their way to the
>> inner tube. You did say these were cyclocross tires, right? :=)
>> My first inclination is that you're wasting your time and money because
>> the inner tube may need replacement.
>> If the only thing that's bad are cracks on the rubber, try patching the
>> cracks with a modern day equivalent of Treadstop (the stuff never
>> worked). If no rubber is missing from the tread, you can use super glue
>> to hold the sides of the cut together. I've used super glue to repair
>> clincher tubes to repair pinholes near the valve. Once the cut holds,
>> leave the tire overnight to cure before applying pressure on the cut. You
>> can make small rubber plugs to replace divots.
>> However, be careful. Cracks in the rubber tread may also mean a slight
>> tear in the casing. You've got to inspect each one with a magnifying
>> glass. If you've got a tear in the casing, do you really want to boot the
>> tubular.

simonvi...@hotmail.com wrote:
> Thanks for all the input. I have had the itch to do this for a while
> and I am not worried about wasting the time or money. I did a crummy
> job of storing some tubular tires when I moved out from the coast to
> the desert and the tires are definitely spares and not race worthy.
> Some of the tires have had their tubes replaced by Tire Alert even
> though the casings are pretty beat. The tires I have left over hold
> air but are pretty worn. Most of the racing I did on them was on
> fairly dry and gravelly courses and they chew up the tires pretty
> bad. I don't plan on racing these tires or even doing any serious
> riding on them.
> Anyway, I figure it's worth a shot and if I have any leaky tubes, I
> will try to plug it up with Tufo sealant just so I can see how they
> roll around.


You do realize that in 3-packs new tubs run $16.67 each? How much of
your time is an old tub worth given a worn casing/tread and a leak?

--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971

simonvi...@hotmail.com

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Jan 26, 2009, 12:05:08 AM1/26/09
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> simonvicker...@hotmail.com wrote:
> > Thanks for all the input.  I have had the itch to do this for a while
> > and I am not worried about wasting the time or money.  I did a crummy
> > job of storing some tubular tires when I moved out from the coast to
> > the desert and the tires are definitely spares and not race worthy.
> > Some of the tires have had their tubes replaced by Tire Alert even
> > though the casings are pretty beat.  The tires I have left over hold
> > air but are pretty worn.  Most of the racing I did on them was on
> > fairly dry and gravelly courses and they chew up the tires pretty
> > bad.  I don't plan on racing these tires or even doing any serious
> > riding on them.
> > Anyway, I figure it's worth a shot and if I have any leaky tubes, I
> > will try to plug it up with Tufo sealant just so I can see how they
> > roll around.
>
> You do realize that in 3-packs new tubs run $16.67 each?  How much of
> your time is an old tub worth given a worn casing/tread and a leak?
>
> --
> Andrew Muzi
>   <www.yellowjersey.org/>
>   Open every day since 1 April, 1971
Sorry, I might have explained this all wrong.
I want to see if I can replace the tread on a 700 X 32 cyclocross tire
with a more aggressive tire tread. I am not talking about road tubs
and I know that you can't buy a 3 pack of CX tubulars for $16.67 ea.
Anyway, I have plenty of tires to ride on the road and I am not going
to mess with those at all.
The point of all this is that there aren't so many tread options for
cyclocross tubulars and it would be interesting, to me, to see if I
could put a different tire tread onto a cyclocross tubular casing.
Knobby for mud, semi slick for sand and turf... I don't know, I just
wanted to see if it's possible.
I have some tires that are nearly junk, but hold air, and I have a few
that the casing appears to have aged to a nice orange color, yet the
tread has become dried and cracked. The tires are just hanging around
my shop and I can't seem to toss them and while they aren't really
worth anything, they aren't entirely worthless either. Anyway it is
just an experiment, I have all of the parts except I don't know what
kind of glue might be best to stick the tread onto the casing.
If you have any ideas about glue, removing a knobby tread from
clincher tire casing, or mounting the tread to the casing, that would
be the most useful information for me.
Cheers,
Simon

Dan O

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Jan 26, 2009, 1:01:36 AM1/26/09
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On Jan 25, 9:05 pm, simonvicker...@hotmail.com wrote:

>
> I want to see if I can replace the tread on a 700 X 32 cyclocross tire
> with a more aggressive tire tread.

I might look for a good tire with thick tread, lots of contact patch,
and workable tread design, then - using a razor blade - cut away some
of the tread to achieve the desired pattern.

je...@outyourbackdoor.com

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Sep 6, 2017, 1:34:12 PM9/6/17
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Ancient thread!

Here's a link to info on Dugast tires that seems to be from a French Canadian shop. It has a brief section about how to remove tread from a casing. http://www.thecyclery.ca/dugast/

I've heard that elites do this. It sounds like it could be fun to mess around with! Everything in the world of elite tubies boils down to craft and art. I've made all sorts of nutty repairs on mine that have held up. Sometimes a tire is so sweet that it's worth it -- and I bet it'll often be a CX tubie!

JeffOYB

ab.ch...@rogers.com

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Sep 6, 2017, 4:18:45 PM9/6/17
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On Wednesday, September 6, 2017 at 1:34:12 PM UTC-4, je...@outyourbackdoor.com wrote:
> Ancient thread!
>
> Here's a link to info on Dugast tires that seems to be from a French Canadian
> shop. It has a brief section about how to remove tread from a casing.
> http://www.thecyclery.ca/dugast/

The Cyclery operates in English. I had a tubular wheel set built there about
three years ago
--
Andrew Chaplin
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