relative cost/usage between bicycle tires and automobile tires

David Damerell wrote:

charles ramsey wrote:
You can get about five times the life with a kevlar belted tire.

How's that work? How does the rubber know there's kevlar underneath it?

Perhaps the kevlar layer prevents the rubber from flexing as much, reducing
the "scrubbing motion" on the road surface?

--
Benjamin Lewis

"Love is a snowmobile racing across the tundra and then suddenly it flips
over, pinning you underneath. At night, the ice weasels come."
--Matt Groening

It is a well known fact to velo-afficianados that the more you pay, the
less you get.

Need proof? take a derailler from X-mart, and compare it to a T.O.O.L.
Campagnolo in weight and price.

- -

"May you have the wind at your back.
And a really low gear for the hills!"

Chris Zacho ~ "Your Friendly Neighborhood Wheelman"

Chris'Z Corner
http://www.geocities.com/czcorner

From: (Peter=A0Cole)

"carlfogel"

wrote

Dear Anon,

I understand that, on a weight basis,
many of the garments available from
Victoria's Secret are scandalously
overpriced and flimsy when compared
to sturdy coveralls.

Equally outraged,

Carl Fogel

I've noticed many older cyclists seem to
have replaced women with bikes as
fetish objects. Is it an ED thing?

Practicality. Even the most expensive bike is cheaper than a woman.

Chris - "With age comes wisdom" - Zacho

- -

"May you have the wind at your back.
And a really low gear for the hills!"

Chris Zacho ~ "Your Friendly Neighborhood Wheelman"

Chris'Z Corner
http://www.geocities.com/czcorner

Chris Zacho "The Wheelman" wrote:
Practicality. Even the most expensive bike is cheaper than a woman.

i'm going to forego the very obvious joke and just point out that it's not
really about delta $, but d$/dt. ie, it's not how much you spend but how
quickly you spend it. and here an expensive bike may have the leg up.

so to speak.
--
david reuteler

David Damerell wrote in message ...
charles ramsey wrote:
You can get about five times the life with a kevlar belted tire.

How's that work? How does the rubber know there's kevlar underneath it?

I thought maybe this was an april fools joke but it finally sunk in if
your major problem is glass cuts the glass takes longer to penetrate
the tire so you have time to stop the bike and remove the glass.

(charles ramsey) wrote in message . com...
It can't be the volume cokertire.com has hundredes of tires for
antique cars I will venture to say that most of them have smaller runs
than bicycle tires and even though they are expensive the cost per
mile is still less. You can get about five times the life with a
kevlar belted tire

no one has noticed that a bike tire has around 20-30 times
less rubber on the road
per pound of carried weight and air pressure.

car ti 3000 lbs / 4 tires / 30 psi air pressure = 25

bike ti 200 / 2 / 100 = 1

this is also largely one reason bike tires don;t hydroplane.

wle.

"Mike Jacoubowsky" wrote in message .com...
cut
Carl: In all seriousness, I don't even know how they can ship something as
heavy and bulky as a car tire for what they charge for cheap ones. It's a
total mystery to me.
cut

Maybe I have a partial answer:

I recently bought 2 tyres for my bike - Hutchinson Acrobat MTB. 2x
£13.99 = £27.98

I also bought 2 tyres for my Ford Fiesta, this time 2 x £14.01 =
£56.10 !!!

With fitting, valves, wheel balancing, carcass disposal fee and even
£1.05 for filling with nitrogen (I didn't ask for that surely?) the
cost of the tyres is only a hook to get me to pay for the services of
the garage, maybe next time the tyres will be free and all I'll have
to pay for is fitting.....

Perhaps if folk just took away and fitted their car tyres the prices
might rise somewhat - just a thought.

Andrew Webster