Reverasble Tires?

Anthony A. said:

Anybody try these new Vittoria Revo.KXS reversable tires?
The marketing hype sounds good, but how do they ride/feel? Flat
resistance? Anoyone have any insight?

Sold a few, nice 'feature', wear one side out, reverse but at bicycle
speeds, on a road, regardless of weather, no real difference. Nice
comfy, well made and EXPENSIVE tire.

Quoted message said:

Quoted message said:

From www.Vittoria.com:

"Revo.KXS is a reversible, double-face tyre. This means indeed
different treads on either side of the casing.
Either side can be used as an individual tyre, one can then reverse it
and have a new tyre!

With over 50 years in research, technology
and experience in the field,
Vittoria has managed to do something quite unheard of:
combining two treads on a single casing.

"One tyre, two seasons, many reasons" clearly goes to the core of
the revolution: one single tire has now two tread designs: one for grip
(KX) and one for speed (KS),
each side with a specific compound: one side for wet road and one for
dry road conditions.

It's truly two tyres in one and it has almost doubled the tyre
tread-life as well as the puncture protection."

Anthony A. said:

Anybody try these new Vittoria Revo.KXS reversable tires?
The marketing hype sounds good, but how do they ride/feel? Flat
resistance? Anoyone have any insight?

Quoted message said:

From www.Vittoria.com:

"Revo.KXS is a reversible, double-face tyre. This means indeed
different treads on either side of the casing.
Either side can be used as an individual tyre, one can then reverse it
and have a new tyre!

With over 50 years in research, technology
and experience in the field,
Vittoria has managed to do something quite unheard of:
combining two treads on a single casing.

Seems like a real dumb idea to me. So, once you have worn it down to the
casing on one side, you turn it over and suddenly it's brand new?
Usually, for me, there are at least some bits of embedded glass that have
damaged the casing some -- and often little bits of glass still embedded
in the tread. So, turn it over and expose the tube to these slivers of
glass. Your "new" tire starts out with somewhat damaged casing. Plus the
fact that you start out with twice as much rubber as you need, doing you
no good. The only thing that would protect from is some sharp bit that
can't quite get all the way through, but when you turn the tire around....

You'd think that Vittoria's 50 years of experience would make all their
tire line great. Most Vittorias stink, IMO.

--

David L. Johnson

__o | Do not worry about your difficulties in mathematics, I can
_`\(,_ | assure you that mine are all greater. -- A. Einstein
(_)/ (_) |

these here tires are terrific!
mount em in one direction you go off to the right
mount em backwards and off you go to the left
next year..

Anthony A. said:

Anybody try these new Vittoria Revo.KXS reversable tires?
The marketing hype sounds good, but how do they ride/feel? Flat
resistance? Anoyone have any insight?

They're bound to be slow, because of all that rubber.

Matt O.

David L. Johnson said:

Seems like a real dumb idea to me.

Yup, completely asinine.

Quoted message said:

You'd think that Vittoria's 50 years of experience would make all
their tire line great. Most Vittorias stink, IMO.

I thought the last pair I had were the best tires I've ever used. The only
reason I didn't buy them again is cost.

Matt O.

Matt O'Toole said:

Quoted message said:

Anybody try these new Vittoria Revo.KXS reversible tires? The
marketing hype sounds good, but how do they ride/feel? Flat
resistance? Anyone have any insight?

Quoted message said:

They're bound to be slow, because of all that rubber.

From: http://www.ribblecycles.co.uk/details.asp?Gencode=VITTTYRF0150

# Vittoria Revo.KXS
#
# Price includes Ultralite Tube.
# Revo.KXS is a reversible, double-faced tyre. This means different
# treads on either side of the casing.
# Either side can be used as an individual tyre. Then reverse it and you
# have a new tyre!
# - Double tread design: speed on one side (KS), grip on the other one (KX)
# - Double tread compound: Aquagrip 3D compound for wet conditions, Kevlar
# SiO2 3D compound for dry roads
# - Double puncture protection PRB
# - Corespun K Casing (polycotton and Kevlar 290 T
# - Doubled tread life and more than doubled puncture protection thanks
# to the two treads and the two sets of PRB (puncture resistant belting).
# - High Cut-Resistance on the sidewalls
# the hybrid Polycotton/Kevlar casing provides a higher sidewall cut
# resistance.
# - Lower Rolling Resistance, the treads sandwich structure and the
# Corespun K casing make for effective vibration damping, thus
# minimising rolling resistance.

That's a lot of advertising hyperbole, playing on all the catchwords
of the tire genre. I see a bunch of new pseudo technical words and
"3D" mixed in. This is also not a carbon black tread compound but
rather one that can be colored, so where's the Aquagrip come in?

This obscures that rolling resistance is caused by tire casing flex
when rolling, causing friction losses in rubber. That includes both
inside and outside tread and the tube that is effectively glued to the
inside of the tire by inflation pressure.

Why there are two nearly identical tread patterns (for all seasons) on
the tire is also unexplained. A road tire loses traction from grooves
in the tread. How does one tread give speed and the other one grip?
This is about as puffy as an ad can get.

So this took 50 years of research?

[email hidden]

Andrew W said:

Qui si parla Campagnolo said:

Sold a few, nice 'feature', wear one side out, reverse but at bicycle
speeds, on a road, regardless of weather, no real difference. Nice
comfy, well made and EXPENSIVE tire.

But no, it's two tyres in one so, you'd expect it to be twice the
price. It's actually quite cheap compared with two conventional tyres.

Andrew Webster

I've been running about 50/50 with broken casings from potholes and
tears from glass ruining tires prematurely. If these tires add the
extra strength of two treads without increasing roll resistance I
would be surprised.

On 15 Jun 2005 06:06:07 -0700, "Anthony A." <[email hidden]>

Quoted message said:

Anybody try these new Vittoria Revo.KXS reversable tires?
The marketing hype sounds good, but how do they ride/feel? Flat
resistance? Anoyone have any insight?

Quoted message said:

From www.Vittoria.com:

"Revo.KXS is a reversible, double-face tyre. This means indeed
different treads on either side of the casing.
Either side can be used as an individual tyre, one can then reverse it
and have a new tyre!

With over 50 years in research, technology
and experience in the field,
Vittoria has managed to do something quite unheard of:
combining two treads on a single casing.

"One tyre, two seasons, many reasons" clearly goes to the core of
the revolution: one single tire has now two tread designs: one for grip
(KX) and one for speed (KS),
each side with a specific compound: one side for wet road and one for
dry road conditions.

It's truly two tyres in one and it has almost doubled the tyre
tread-life as well as the puncture protection."

IIRC, I think I suggested this concept as a *joke* in this ng a while
back. I *still* consider it a joke.
--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.

Quoted message said:

Or that colored material has better traction?

Not a chance in hell. Colored tread always dries up and cracks before the
carbon rubber does. I'm a little bitter because they've caused me plenty of
crashes in the last few weeks. Total [censored]. Others find the same results
with their colored tread. Finally got around to putting on some Gatorskins
due to the x-treeme cornering I've been doing, or not able to do actually...
😉

--
Phil, Squid-in-Training

On Wed, 15 Jun 2005 17:03:54 GMT, [email hidden]

Quoted message said:

So this took 50 years of research?

Possible alternate explanations...

- It took 50 years of research to find a designer who wouldn't
clobber the marketing droid that suggested it.

- It took 50 years for all of the staff to retire who recalled why
this was dumb the last time.

- "We didn't say we spent 50 years researching *this* idea, just that
we've spent 50 years combing the books for ideas that nobody has tried
recently."

- "The design was inspired by the original (and now-forgotten)
reversible decking of the Brooklyn Bridge, which could be flipped over
to present a surface from which all of the horse manure had dried and
fallen off, at great saving to the bridge operators vs the cost of
ordinary removal."

One should always remember that in many circles, it is held that the
first rule of engineering is that if you can't make mistakes, you
won't make anything at all. Perhaps this reversible tire is a
testament to that rule's applicability.

--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.

Werehatrack said:

On 15 Jun 2005 06:06:07 -0700, "Anthony A." <[email hidden]>

Quoted message said:

Anybody try these new Vittoria Revo.KXS reversable tires?
The marketing hype sounds good, but how do they ride/feel? Flat
resistance? Anoyone have any insight?

Quoted message said:

From www.Vittoria.com:

"Revo.KXS is a reversible, double-face tyre. This means indeed
different treads on either side of the casing.
Either side can be used as an individual tyre, one can then reverse
it and have a new tyre!

With over 50 years in research, technology
and experience in the field,
Vittoria has managed to do something quite unheard of:
combining two treads on a single casing.

"One tyre, two seasons, many reasons" clearly goes to the core of
the revolution: one single tire has now two tread designs: one for
grip (KX) and one for speed (KS),
each side with a specific compound: one side for wet road and one for
dry road conditions.

It's truly two tyres in one and it has almost doubled the tyre
tread-life as well as the puncture protection."

IIRC, I think I suggested this concept as a *joke* in this ng a while
back. I *still* consider it a joke.

I don't know... it'd be funny to go on a club ride and when it stops
raining, have a phred call out to the group to stop and wait so he can flip
his tire tread.

I wonder what an r.b.t-only club ride would be like...

--
Phil, Squid-in-Training

Squid-in-Training said:

I wonder what an r.b.t-only club ride would be like...

The mind boggles. The possibilities are many, the attraction
slight...
--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.

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

Quoted message said:

Quoted message said:

Then you should be able to provide counter-examples, else your comments
are
in the same category as those you disparage.

Quoted message said:

The choice of treads, compounds, or casings is not my concern.

They are ours - as Mr. Friday was wont to say, "just the facts, ma'am".

I guess you'll have to read the article, yes ?
You did see my specific reference, earlier, I must hope.
As most know, I won't steal copyright material.

Paraphrasing the results, as most know, is not "stealing" copyright.

Perhaps the article does not support your statements?

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

Quoted message said:

Sandy,

Since I have been unable to locate Le Cycle via Google, perhaps you
could post an e-mail address by which one of us could contact them.

They are (as is most of France) either absent from or unwilling to broadly
enter the internet. I am not sure they have even registered a site
protectively. They have no editorial department e-mail I know of. There is
a general address :

[email hidden]

You can write - English is current here.

Quoted message said:

From my limited understanding of international copyright law, the
whole issue of "stealing" is quickly rended asunder once permission
has been granted.

That's right, but I think they are likely to offer these pages just a wee
bit after Mr Brandt donates all his publications to the public domain.
Maybe after they get e-mail ....
--
Sandy
Verneuil-sur-Seine

holy cheese batman! i thought uwere pulling my tail?

Phil said:

I wonder what an r.b.t-only club ride would be like...

At least we'd all know who's packin heat.

Quoted message said:

Phil said:

I wonder what an r.b.t-only club ride would be like...

At least we'd all know who's packin heat.

It's ain't the heat, it's the humidity.
--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.

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

Quoted message said:

Observe how I am not holding
my breath.

Done.

--
Michael Press

Do you also worship wooden figures ?
Turn blue yet ?
--
Sandy
Verneuil-sur-Seine
*******

La vie, c'est comme une bicyclette,
il faut avancer pour ne pas perdre l'équilibre.
-- Einstein, A.

whew that's a lotta dough. must be one helluva carcass. where's the
market target here?