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Old 11-07-11 | 11:28 PM
  #126  
SlimRider
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Joined: May 2011
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From: Northern California

Bikes: Raleigh Grand Prix, Giant Innova, Nishiki Sebring, Trek 7.5FX

Originally Posted by Bob Dopolina
That's not a TEST. That's probably one of the least scientific 'tests' I've every seen.

The claim you are making about carbon is utterly false.

Just as 'scientific' but with Tange steel.

A bit of info on real fatique (destructive) testing, and some details on the testing proceedures, fatique testing on Ti and fatique testing on carbon.
It was just as scientific as the "Niner Bikes for Hammering" test...

Let me set that fork down on its corner and hit it with that same hammer. There's a difference between getting punched in the chin as you move backwards, than getting punched in the chin while the chin is braced, and not moving.

Everytime, that guy hit the fork, the fork was moving in the same direction as the force. That mitigates the force! Now, if you were to brace that fork so that it wouldn't move in the same direction of the striking force, it would break! That test is nothing but a trick! It's laughable!

The german test, OTOH, actually showed you what happens when someone steps on a carbon frame versus the others. It actually demonstrates what happens to CF when a heavy weight impacts it. None of these demonstrations, speak to durability or strength, just impact resistance. This is consistent with what the Calfee design people say below. Impact-resistance is where CF fails! These are CF people saying this, NOT me!

Just check out their website below!

- Slim

PS.

However, not to worry! Within the next two or three years, this will not be the case. When they do resolve the CF impact problem, CF will displace all other bicycle frame material and render the others almost useless!

Last edited by SlimRider; 11-08-11 at 01:30 AM.
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