First Flat

In article said:

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

Quoted message said:

Quoted message said:

> Can someone explain to me why (some) bikes have to be the only vehicle

*not*

Quoted message said:

> to use standard (Schrader) valves?

Don't even freaking go there. Everybody knows that Prestas are far

superior

Quoted message said:

valves, and they should be on cars as well.

Because Presta are closed by air pressure and not spring pressure, I gather they are not at their
best in low-pressure applications.

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Yes, and Betamax is a far superior tape format.

Actually, as I understand it, Betamax WAS a superior tape format. Maybe I'm misinformed and too
young to know... <sniff>

Well, there were picture quality advantages at some times in the format wars, but nothing worth
selling the farm for. On the other hand, VHS had an early advantage in that the tapes played longer,
so you could get longer movies on just one cassette.

Quoted message said:

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I might agree presta seems marginally better - but it's non-standardness with *virtually every
other vehicle* is a huge downside IMHO.

It's not even a big deal. Presta-capable floor pumps are available for $20 (mine does both Presta
and Schrader), and adapters to allow you to fill a presta tube from a Schrader pump are about $2.

--
Ryan Cousineau, [email hidden] sfu.ca~rcousineOpen ↗ President, Fabrizio Mazzoleni Fan Club

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

Quoted message said:

In article said:

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

Quoted message said:

> > Can someone explain to me why (some) bikes have to be the only

vehicle

Quoted message said:

Quoted message said:

Quoted message said:

*not*
> > to use standard (Schrader) valves?
>
> Don't even freaking go there. Everybody knows that Prestas are far
superior
> valves, and they should be on cars as well.

Because Presta are closed by air pressure and not spring pressure, I gather they are not at their
best in low-pressure applications.

Uhhhmm, it's 'sort of' the other way around, surely - Schrader valves are sealed by a small spring
force plus the force of whatever air pressure they contain. Presta, are sealed first by their
internal air pressure, then mechanically by tightening of the little fiddley knurled nut thingy.

Quoted message said:

Quoted message said:

Quoted message said:

Yes, and Betamax is a far superior tape format.

Actually, as I understand it, Betamax WAS a superior tape format. Maybe I'm misinformed and too
young to know... <sniff>

Well, there were picture quality advantages at some times in the format wars, but nothing worth
selling the farm for. On the other hand, VHS had an early advantage in that the tapes played
longer, so you could get longer movies on just one cassette.

Beta may well have been better, but IMNSHO the best by far was Phillips Video 2000 system -
excellently clear picture quality, visually stable pause, as well as fwd and rev picture search, and
stable single frame advance too. This was the first system to have dynamic auto tracking adjust,
_way_ before VHS even found a way to do it. The tapes were also double sided, like an audio
cassette, and had plenty of record time on them.

VHS managed to flood-corner the market, so Beta and V2000 hadn't got a market after a short
while, and fell.

Shaun aRe

In article said:

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

Quoted message said:

In article said:

"John Harlow" <[email hidden]> wrote in message
"]news:[email hidden]...
> > > Can someone explain to me why (some) bikes have to be the only

vehicle

Quoted message said:

Quoted message said:

> *not*
> > > to use standard (Schrader) valves?
> >
> > Don't even freaking go there. Everybody knows that Prestas are far
> superior
> > valves, and they should be on cars as well.

Because Presta are closed by air pressure and not spring pressure, I gather they are not at
their best in low-pressure applications.

Uhhhmm, it's 'sort of' the other way around, surely - Schrader valves are sealed by a small spring
force plus the force of whatever air pressure they contain. Presta, are sealed first by their
internal air pressure, then mechanically by tightening of the little fiddley knurled nut thingy.

I wasn't aware that Schrader valves had any significant air-sealing effect, but I don't know the
valve mechanisms well.

Quoted message said:

Beta may well have been better, but IMNSHO the best by far was Phillips Video 2000 system -
excellently clear picture quality, visually stable pause, as well as fwd and rev picture search,
and stable single frame advance too. This was the first system to have dynamic auto tracking
adjust, _way_ before VHS even found a way to do it. The tapes were also double sided, like an
audio cassette, and had plenty of record time on them.

Video 2000 eh? Never heard of it.

Quoted message said:

VHS managed to flood-corner the market, so Beta and V2000 hadn't got a market after a short while,
and fell.

Don't know what it was like where you lived, but I certainly remember the era of Beta/VHS video
stores, which must have lasted several years. It looked a lot like the current DVD/VHS situation,
except that Beta hadn't already had a long run of commercial viability.

--
Ryan Cousineau, [email hidden] sfu.ca~rcousineOpen ↗ President, Fabrizio Mazzoleni Fan Club

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

Quoted message said:

In article <[email hidden]>, "Shaun Rimmer"

Quoted message said:

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

Quoted message said:

In article <[email hidden]>, "Westie" <[email hidden]> wrote:

> "John Harlow" <[email hidden]> wrote in message
> "]news:[email hidden]...
> > > > Can someone explain to me why (some) bikes have to be the only

vehicle

Quoted message said:

> > *not*
> > > > to use standard (Schrader) valves?
> > >
> > > Don't even freaking go there. Everybody knows that Prestas are

far

Quoted message said:

Quoted message said:

Quoted message said:

> > superior
> > > valves, and they should be on cars as well.

Because Presta are closed by air pressure and not spring pressure, I gather they are not at
their best in low-pressure applications.

Uhhhmm, it's 'sort of' the other way around, surely - Schrader valves

are

Quoted message said:

Quoted message said:

sealed by a small spring force plus the force of whatever air pressure

they

Quoted message said:

Quoted message said:

contain. Presta, are sealed first by their internal air pressure, then mechanically by
tightening of the little fiddley knurled nut thingy.

I wasn't aware that Schrader valves had any significant air-sealing effect, but I don't know the
valve mechanisms well.

They got enough! ',;~}~

Quoted message said:

Quoted message said:

Beta may well have been better, but IMNSHO the best by far was Phillips Video 2000 system -
excellently clear picture quality, visually stable pause, as well as fwd and rev picture search,
and stable single frame advance too. This was the first system to have dynamic auto tracking

adjust,

Quoted message said:

Quoted message said:

_way_ before VHS even found a way to do it. The tapes were also double sided, like an audio
cassette, and had plenty of record time on them.

Video 2000 eh? Never heard of it.

Phillips' stuff - _excellent_ piece(s) of technology, especially for the era.

Quoted message said:

Quoted message said:

VHS managed to flood-corner the market, so Beta and V2000 hadn't got a market after a short
while, and fell.

Don't know what it was like where you lived, but I certainly remember the era of Beta/VHS
video stores,

Same here.

Quoted message said:

which must have lasted several years.

Uh-huh, but Beta rapidly fell out of the market.

Quoted message said:

It looked a lot like the current DVD/VHS situation, except that Beta hadn't already had a long run
of commercial viability.

Shaun aRe