Tire puzzle

AMuzi wrote:
wrote:
[...]
The ancients knew where the losses were and knew how to beat them.
There are no such tires today.

John Forrest Tomlinson wrote:
Yeah, no such tires today. Not silk. Five grams heavier:
http://www.conti-online.com/generato...lympic_en.html


"Our ASC silica compound provides reliable grip on wood and cement
tracks."
WTH is s "cement" track?

Tom Sherman wrote:
Leftovers from making concrete?
http://www.cement.org/basics/concretebasics_faqs.asp

Translation error?

Perhaps they were thinking of Alpenrose velodrome. It is, after all, in
Portland.

----

Interesting that the Conti Olympic tubular is rated to 15 bar. 30+ years
ago wasn't Continental advertising that their tires could handle 400 psi?

John Forrest Tomlinson wrote:
On 13 Mar 2009 08:41:46 GMT, wrote:

Too bad the good old days of 180g tubular tires are gone or you would
have seen that the fastest track tires were 120TPI (0.2mm silk thread)
in each of the two plies and had latex rubber as inter-ply bonding
with a 1mm thick smooth latex tread glued to the 25mm diameter casing
of bare white silk (seta) side walls (0.4mm thick) with latex. Their
base tape was thin without rubber coating and was glued to the rim
with shellac.

These tires were ridden on tracks with 130-170psi inflation pressure
[some material snipped]
The ancients knew where the losses were and knew how to beat them.
There are no such tires today.

Yeah, no such tires today. Not silk. Five grams heavier:
http://www.conti-online.com/generato...lympic_en.html

Yikes! $300 a tire,,,
http://www.competitivecyclist.com/ro...4113.39.1.html
(this place is cheap; most places I find it are $300-$350)

I'll never complain about paying for $50 Schwalbe clinchers again.....
~

DougC wrote:
John Forrest Tomlinson wrote:
On 13 Mar 2009 08:41:46 GMT, wrote:

Too bad the good old days of 180g tubular tires are gone or you would
have seen that the fastest track tires were 120TPI (0.2mm silk thread)
in each of the two plies and had latex rubber as inter-ply bonding
with a 1mm thick smooth latex tread glued to the 25mm diameter casing
of bare white silk (seta) side walls (0.4mm thick) with latex. Their
base tape was thin without rubber coating and was glued to the rim
with shellac.

These tires were ridden on tracks with 130-170psi inflation pressure
[some material snipped]
The ancients knew where the losses were and knew how to beat them.
There are no such tires today.

Yeah, no such tires today. Not silk. Five grams heavier:
http://www.conti-online.com/generato...lympic_en.html


Yikes! $300 a tire,,,
http://www.competitivecyclist.com/ro...4113.39.1.html

(this place is cheap; most places I find it are $300-$350)

I'll never complain about paying for $50 Schwalbe clinchers again.....
~

Parker International has them for $278. Probikekit doesn't list them but
has Conti Sonderklasse tubs at a true bargain of $74 each including
shipping. No sarcasm. They are the best track tubulars in the world for
massed start track racing (not bad for smooth crits, too). Competitive
Cyclists has the same tubs for $129.00 + $10 shipping.