Carbon fiber frame cutaway thread.Internal inside structure

Discuss light weight issues concerning road bikes & parts.
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bJay
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Location: Vancouver

by bJay

ttakata73 wrote:The cuts are so clean, do you guys use angle grinders and fiber cutoff wheels or some sort of metal bladed saw?


Combination of dremel and angle grinder with diamond cutoff wheels.

Extensive safety precautions were taken :mrgreen: :mrgreen: :mrgreen:

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B
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by Weenie


FreaK
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by FreaK

ttakata73 wrote:I hate to bring up this common pic again, but I want to know if those knock off Chinese carbon frames look like today's high end bikes inside or more like this old picture inside.
...Image
These wheels look nice on the outside, but are you still going to say they perform as well as Mavics or Zipps which happen to be smooth and even inside?

That's what all the zipps i've built with look like on the inside. Don't believe everything you hear.
it's actually possible to come to the conclusion even before realising it makes no sense at all
-
tymon_tm

ross
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by ross

Apologies for the rubbish phone pics, these were taken at Canyon HQ on my last visit. They are of an Ultimate CF on display

Click photos for full size

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tranzformer
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Joined: Mon Jan 21, 2008 10:36 pm

by tranzformer

FreaK wrote: That's what all the zipps i've built with look like on the inside. Don't believe everything you hear.


Not the FC rims that I have seen in person. Plus I have been to their factory and seen the wheels made in person. You couldn't be further from the truth.

FreaK
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by FreaK

What? In saying that my experience of ZIPP product is as i stated? don't accuse me of lying.

fie upon your fetid snakey head
it's actually possible to come to the conclusion even before realising it makes no sense at all
-
tymon_tm

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carbonLORD
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by carbonLORD

FreaK wrote:What? In saying that my experience of ZIPP product is as i stated? don't accuse me of lying.

fie upon your fetid snakey head


Must have been a few seasons ago as the FireCrest designs from 2011 onward do not share the same construction methods as Zipp wheels of past, even earlier dimpled ones, especially alloy braking versions.

I'm sure you did see it, just wouldn't be on current generation products.
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SuperDave
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by SuperDave

ttakata73 wrote:I posted this on another Road forum that is half full of comedians and idiots so thought I should post here as well since you guys are more serious.

I was curious as to what the insides of carbon fiber frames look like now and then.
It would be fun to see what old frames look like inside, how uneven the layups were, etc.
I'm particularly curious to see how wall thicknesses vary and how smooth the interior walls are on low end Chinese copycats since my search found nothing.

Obviously most people aren't going to cut up a good frame, but if you crashed yours why not cut it up and show us how the remaining good parts look inside?
Just tell us the year, make, model, and areas you are showing.
Anyone with a bandsaw, or vise and hacksaw can do this easy.
Just make sure you wear a mask and glasses since that dust is not healthy.
It is also interesting to see how the frames are getting smoother/lighter inside as time goes on.

A Google search gave me a good start on the reputable companies that are proud and stand behind their craftsmanship.
Some links have many pics of cutaways and you can see why they charge a premium.

2009 Avanti, ewww.
http://www.cyclingnews.com/features/pho ... pace/12777" onclick="window.open(this.href);return false;

2008 Trek Madone fork
http://www.cyclingnews.com/features/pho ... done/12574" onclick="window.open(this.href);return false;

2009 Specialized
http://www.bikerumor.com/2009/04/19/spe ... -cutaways/" onclick="window.open(this.href);return false;

2009 Time at Eurobike
http://www.cyclingnews.com/features/pho ... rt-5/86697" onclick="window.open(this.href);return false;

2010 Focus Izalco Max
http://www.cyclingnews.com/features/pho ... ono/272918" onclick="window.open(this.href);return false;

2011 Scott Scale 899
http://www.bikerumor.com/2010/06/25/fir ... new-scale/" onclick="window.open(this.href);return false;

2011 Felt
http://www.carbonfiberguru.com/carbon-f ... 2011-line/" onclick="window.open(this.href);return false;

2011 Look 695
http://www.bikeradar.com/news/article/l ... iew-26817/" onclick="window.open(this.href);return false;
http://www.bikerumor.com/2010/09/30/int ... road-bike/" onclick="window.open(this.href);return false;

2012 exogrid tube
http://www.cyclingnews.com/features/pho ... ter/210561" onclick="window.open(this.href);return false;

2012 Raleigh RXC
http://www.bikerumor.com/2011/08/02/201 ... tion-more/" onclick="window.open(this.href);return false;

2012 Rock Racing
http://www.cebucycling.com/index.php?topic=17430.0" onclick="window.open(this.href);return false;

2012 Santa Cruz Blur
http://www.bikerumor.com/2011/04/08/tec ... tr-carbon/" onclick="window.open(this.href);return false;

2013 Diamondback Podium
http://www.cyclingnews.com/features/pho ... kes/233066" onclick="window.open(this.href);return false;
http://www.cyclingnews.com/features/pho ... kes/233067" onclick="window.open(this.href);return false;

2013 Look 695 Aerolight
http://www.cyclingnews.com/features/pho ... ll-details" onclick="window.open(this.href);return false;


Cool! I've got a bunch of cut up frames from both Felt and many of our competitors. Every time I have to cut a functional frame up though God kills a kitten. It is a painful process.

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