Isotruss Carbon Frames

I was down at the Sea Otter Classic http://www.seaotterclassic.com/ in
Monterey yesterday. I saw one of the new "Isotruss" carbon frames. Very
impressive. They were showing how strong it is, despite being lighter
than regular carbon-fiber tubing.
http://www.prologuecycling.com/kovit-cycles-isotech-technology-better-mousetrap/.

You can clamp these tubes in a repair stand or car rack. You can stomp
on the tubing. They said that their strongest version can be run over
with a truck (but advised against running over a complete bicycle).

It's too light for professional racers to use in a bike.

This is the future of carbon-fiber bicycles. Get rid of any CF bicycles
you may have around and buy one of these. Several companies are making
them now.

On 4/11/2014 11:17 AM, sms wrote:
I was down at the Sea Otter Classic http://www.seaotterclassic.com/ in
Monterey yesterday. I saw one of the new "Isotruss" carbon frames. Very
impressive. They were showing how strong it is, despite being lighter
than regular carbon-fiber tubing.
http://www.prologuecycling.com/kovit-cycles-isotech-technology-better-mousetrap/.


You can clamp these tubes in a repair stand or car rack. You can stomp
on the tubing. They said that their strongest version can be run over
with a truck (but advised against running over a complete bicycle).

It's too light for professional racers to use in a bike.

This is the future of carbon-fiber bicycles. Get rid of any CF bicycles
you may have around and buy one of these. Several companies are making
them now.

I recall seeing a similar frame at the outstanding Bicycle Museum of
America, in tiny New Bremen, Ohio. (If you're passing near the area,
it's well worth the stop. I spent many happy hours there.)

Looks to me like the Isotruss frame will be rigid _and_ compliant, with
a magic road feel that's indescribable - a perfect marriage of body and
bike that one can get only with steel - no, aluminum - no, titanium -
no, carbon fiber - no, steel again - no, isotruss carbon. ONLY Isotruss
carbon. Until the next thing comes along, anyway.

A detail: The failed solid tube at about 1:20 in their video doesn't
seem to have the weave pattern that's standard in CF tubing. All the
carbon fibers seem to be longitudinal. That would certainly make a
weaker tube. I'd like to see some detailed data using a wider variety
of CF tubes for comparison.

Oh, and to get real data, it might be a good idea to use a real
compression tester, instead of a Toyota pickup truck.
http://en.wikipedia.org/wiki/Universal_testing_machine

--
- Frank Krygowski

http://upload.wikimedia.org/wikipedi...cub_geyser.jpg

On Friday, April 11, 2014 11:17:48 AM UTC-4, sms wrote:
I was down at the Sea Otter Classic http://www.seaotterclassic.com/ in

Monterey yesterday. I saw one of the new "Isotruss" carbon frames. Very

impressive. They were showing how strong it is, despite being lighter

than regular carbon-fiber tubing.

http://www.prologuecycling.com/kovit-cycles-isotech-technology-better-mousetrap/.



You can clamp these tubes in a repair stand or car rack. You can stomp

on the tubing. They said that their strongest version can be run over

with a truck (but advised against running over a complete bicycle).



It's too light for professional racers to use in a bike.



This is the future of carbon-fiber bicycles. Get rid of any CF bicycles

you may have around and buy one of these. Several companies are making

them now.

Not bad for throw away extrem ely fragile frames is it? LOL VBG

Cheers

On Friday, April 11, 2014 9:33:14 AM UTC-7, Frank Krygowski wrote:
On 4/11/2014 11:17 AM, sms wrote:

I was down at the Sea Otter Classic http://www.seaotterclassic.com/ in

Monterey yesterday. I saw one of the new "Isotruss" carbon frames. Very

impressive. They were showing how strong it is, despite being lighter

than regular carbon-fiber tubing.

http://www.prologuecycling.com/kovit-cycles-isotech-technology-better-mousetrap/.





You can clamp these tubes in a repair stand or car rack. You can stomp

on the tubing. They said that their strongest version can be run over

with a truck (but advised against running over a complete bicycle).



It's too light for professional racers to use in a bike.



This is the future of carbon-fiber bicycles. Get rid of any CF bicycles

you may have around and buy one of these. Several companies are making

them now.



I recall seeing a similar frame at the outstanding Bicycle Museum of

America, in tiny New Bremen, Ohio. (If you're passing near the area,

it's well worth the stop. I spent many happy hours there.)



Looks to me like the Isotruss frame will be rigid _and_ compliant, with

a magic road feel that's indescribable - a perfect marriage of body and

bike that one can get only with steel - no, aluminum - no, titanium -

no, carbon fiber - no, steel again - no, isotruss carbon. ONLY Isotruss

carbon. Until the next thing comes along, anyway.



A detail: The failed solid tube at about 1:20 in their video doesn't

seem to have the weave pattern that's standard in CF tubing. All the

carbon fibers seem to be longitudinal. That would certainly make a

weaker tube. I'd like to see some detailed data using a wider variety

of CF tubes for comparison.



Oh, and to get real data, it might be a good idea to use a real

compression tester, instead of a Toyota pickup truck.

http://en.wikipedia.org/wiki/Universal_testing_machine

Yes, as we all know, the pinnacle of bicycle technology was reached with the Schwinn Panther II. http://schwinncruisers.com/bikes/panther2/
You could still race that in the Tour de France! https://www.youtube.com/watch?v=1rzg3esJaaU

For some olde tyme bicycle reviews, you should check out this gallery. http://www.velo-pages.com/main.php?g2_itemId=14229 The link is to a De Rosa review, but there are all sorts of reviews starting with a '65 Paramount. The reviews are oddly unenlightening -- not so hyperbolic as modern reviews, but they don't really say much -- probably because there was not much to say. Everyone was using the same tube sets and lugs (in somewhat different combinations), and the geometries seemed to be national in origin -- Italiano frames were more upright with shorter TTs with the French more relaxed, etc. A lot of the reviews point out the absence of problems, e.g., the bike is not too flexible or it does not have brakes that "shudder" or isn't "too" heavy. It seemed like you went out and bought the bike that was the least disappointing. Some of them are more upbeat. The De Rosa review has a lot of damning with faint praise -- and a slightly snide reference to all the decals and cut-out logos, echoing the old preference for understatement. I used to go look at the De Rosas at Talbots and thought they looked super-cool. I still wanted the Masi, though.

-- Jay Beattie.

-- Jay Beattie.

-- Jay Beattie.

On 4/11/2014 3:29 PM, jbeattie wrote:
On Friday, April 11, 2014 9:33:14 AM UTC-7, Frank Krygowski wrote:
On 4/11/2014 11:17 AM, sms wrote:

I was down at the Sea Otter Classic http://www.seaotterclassic.com/ in

Monterey yesterday. I saw one of the new "Isotruss" carbon frames. Very

impressive. They were showing how strong it is, despite being lighter

than regular carbon-fiber tubing.

http://www.prologuecycling.com/kovit-cycles-isotech-technology-better-mousetrap/.





You can clamp these tubes in a repair stand or car rack. You can stomp

on the tubing. They said that their strongest version can be run over

with a truck (but advised against running over a complete bicycle).



It's too light for professional racers to use in a bike.



This is the future of carbon-fiber bicycles. Get rid of any CF bicycles

you may have around and buy one of these. Several companies are making

them now.



I recall seeing a similar frame at the outstanding Bicycle Museum of

America, in tiny New Bremen, Ohio. (If you're passing near the area,

it's well worth the stop. I spent many happy hours there.)



Looks to me like the Isotruss frame will be rigid _and_ compliant, with

a magic road feel that's indescribable - a perfect marriage of body and

bike that one can get only with steel - no, aluminum - no, titanium -

no, carbon fiber - no, steel again - no, isotruss carbon. ONLY Isotruss

carbon. Until the next thing comes along, anyway.



A detail: The failed solid tube at about 1:20 in their video doesn't

seem to have the weave pattern that's standard in CF tubing. All the

carbon fibers seem to be longitudinal. That would certainly make a

weaker tube. I'd like to see some detailed data using a wider variety

of CF tubes for comparison.



Oh, and to get real data, it might be a good idea to use a real

compression tester, instead of a Toyota pickup truck.

http://en.wikipedia.org/wiki/Universal_testing_machine

Yes, as we all know, the pinnacle of bicycle technology was reached with the Schwinn Panther II. http://schwinncruisers.com/bikes/panther2/
You could still race that in the Tour de France! https://www.youtube.com/watch?v=1rzg3esJaaU

For some olde tyme bicycle reviews, you should check out this gallery. http://www.velo-pages.com/main.php?g2_itemId=14229 The link is to a De Rosa review, but there are all sorts of reviews starting with a '65 Paramount. The reviews are oddly unenlightening -- not so hyperbolic as modern reviews, but they don't really say much -- probably because there was not much to say. Everyone was using the same tube sets and lugs (in somewhat different combinations), and the geometries seemed to be national in origin -- Italiano frames were more upright with shorter TTs with the French more relaxed, etc. A lot of the reviews point out the absence of problems, e.g., the bike is not too flexible or it does not have brakes that "shudder" or isn't "too" heavy. It seemed like you went out and bought the bike that was the least disappointing. Some of them are more upbeat. The De Rosa review has a lot of damning with faint praise -- and a slightly snide reference to all the decals and cut-out l
ogos, echoing the old preference for understatement. I used to go look at the De Rosas at Talbots and thought they looked super-cool. I still wanted the Masi, though.



That classic style still has accomplished practitioners and
adherents:

http://www.yellowjersey.org/ng14.html

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

On Friday, April 11, 2014 1:43:18 PM UTC-7, AMuzi wrote:
On 4/11/2014 3:29 PM, jbeattie wrote:

On Friday, April 11, 2014 9:33:14 AM UTC-7, Frank Krygowski wrote:

On 4/11/2014 11:17 AM, sms wrote:



I was down at the Sea Otter Classic http://www.seaotterclassic.com/ in



Monterey yesterday. I saw one of the new "Isotruss" carbon frames. Very



impressive. They were showing how strong it is, despite being lighter



than regular carbon-fiber tubing.



http://www.prologuecycling.com/kovit-cycles-isotech-technology-better-mousetrap/.











You can clamp these tubes in a repair stand or car rack. You can stomp



on the tubing. They said that their strongest version can be run over



with a truck (but advised against running over a complete bicycle).







It's too light for professional racers to use in a bike.







This is the future of carbon-fiber bicycles. Get rid of any CF bicycles



you may have around and buy one of these. Several companies are making



them now.







I recall seeing a similar frame at the outstanding Bicycle Museum of



America, in tiny New Bremen, Ohio. (If you're passing near the area,



it's well worth the stop. I spent many happy hours there.)







Looks to me like the Isotruss frame will be rigid _and_ compliant, with



a magic road feel that's indescribable - a perfect marriage of body and



bike that one can get only with steel - no, aluminum - no, titanium -



no, carbon fiber - no, steel again - no, isotruss carbon. ONLY Isotruss



carbon. Until the next thing comes along, anyway.







A detail: The failed solid tube at about 1:20 in their video doesn't



seem to have the weave pattern that's standard in CF tubing. All the



carbon fibers seem to be longitudinal. That would certainly make a



weaker tube. I'd like to see some detailed data using a wider variety



of CF tubes for comparison.







Oh, and to get real data, it might be a good idea to use a real



compression tester, instead of a Toyota pickup truck.



http://en.wikipedia.org/wiki/Universal_testing_machine



Yes, as we all know, the pinnacle of bicycle technology was reached with the Schwinn Panther II. http://schwinncruisers.com/bikes/panther2/

You could still race that in the Tour de France! https://www.youtube.com/watch?v=1rzg3esJaaU



For some olde tyme bicycle reviews, you should check out this gallery. http://www.velo-pages.com/main.php?g2_itemId=14229 The link is to a De Rosa review, but there are all sorts of reviews starting with a '65 Paramount. The reviews are oddly unenlightening -- not so hyperbolic as modern reviews, but they don't really say much -- probably because there was not much to say. Everyone was using the same tube sets and lugs (in somewhat different combinations), and the geometries seemed to be national in origin -- Italiano frames were more upright with shorter TTs with the French more relaxed, etc. A lot of the reviews point out the absence of problems, e.g., the bike is not too flexible or it does not have brakes that "shudder" or isn't "too" heavy. It seemed like you went out and bought the bike that was the least disappointing. Some of them are more upbeat. The De Rosa review has a lot of damning with faint praise -- and a slightly snide reference to all the decals and cut-out l

ogos, echoing the old preference for understatement. I used to go look at the De Rosas at Talbots and thought they looked super-cool. I still wanted the Masi, though.







That classic style still has accomplished practitioners and

adherents:



http://www.yellowjersey.org/ng14.html



--

Andrew Muzi

www.yellowjersey.org/

Open every day since 1 April, 1971

Alas, my Kerin days are over. But, if I wanted a steel frame, my options are many: http://oregonframebuilders.org/members/ We have a custom builder under every rock, in part because we have a frame building school in town. http://www.bikeschool.com/classes/fr...ng-classes#bra I'm going to take that class one day, right after I finish barista school. http://www.coffeebusiness.com/

BTW, my favorite Portland unobtainable artwork frame: http://vanillabicycles.com/frames/road/1/

-- Jay Beattie.

ah Senor....these frames costs $50 used .......n coffee destroys the last trun into the ascending colon. Alkaloids/acids.

is nice paint. why is the BB open ?

CF is too fragile for the super duper rack. That's the same deal as Ti. Park the Ti n the boys will follow you trying to steal the MF

On 4/11/2014 4:29 PM, jbeattie wrote:

For some olde tyme bicycle reviews, you should check out this gallery.
http://www.velo-pages.com/main.php?g2_itemId=14229 The link is to a De
Rosa review,
but there are all sorts of reviews starting with a '65 Paramount.

Heh. I've probably still got that issue up in my attic!

The reviews are oddly unenlightening -- not so hyperbolic as modern reviews,
but they don't really say much -- probably because there was not much to
say.

I'm wondering if that was back when John Schubert was editor. He's a
very level-headed guy, and would probably have squelched the modern
hyperbole. Until a few years ago, he was tech editor for the Adventure
Cycling magazine. His bike & equipment reviews tended heavily toward
the rational. Very much out of fashion these days!

Everyone was using the same tube sets and lugs (in somewhat different
combinations), and the geometries seemed to be national in origin --
Italiano frames were more upright with shorter TTs with the French more
relaxed, etc. A lot of the reviews point out the absence of problems,
e.g., the bike is not too flexible or it does not have brakes that
"shudder" or isn't "too" heavy. It seemed like you went out and bought
the bike that was the least disappointing. Some of them are more upbeat.
The De Rosa review has a lot of damning with faint praise -- and a
slightly snide reference to all the decals and cut-out logos, echoing
the old preference for understatement.

Another benefit of the Isotruss construction! People won't be wrapping
decals around those frame tubes, so that's even more weight savings! ;-)

--
- Frank Krygowski