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Shimano introduces carbon Dura-Ace crankset


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Posted

Shimano introduces carbon Dura-Ace crankset

http://www.bike-eu.com/public/Image/Bike%20Europe%20Website%20Dura%20Ace.jpgAt Eurobike Shimano introduced a carbon fiber Dura-Ace crankset. The FC-7800C has an aluminium core to realize a lightweight yet very rigid construction. By using this technology, Shimano developed a crank set that combines the best of both materials.

The aluminium frame ensures a stiff set-up for optimal power transfer while the carbon saves weight. In numbers: weight of this crank set (including bottom bracket) is 709 grams and it is 10% stiffer than the aluminium Dura-Ace crank set FC-7800 that is already famous for its rigidity.

FC-7800C has been developed with Shimano?s proven HOLLOWTECH II technology with an integrated bottom bracket. It uses identical bottom bracket bearing cups as FC-7800. The left crank arm features the same installation technology as current Shimano XTR to save some weight and to make installation even easier.

This state-of-the-art crank set will be available in gear combinations 53/39T and 52/39T in crank arm lengths 170, 172.5 and 175mm.

Michael Boogerd (Team Rabobank) and Markus Fothen (Team Gerolsteiner) have taken this crank set already to the ultimate test: the Tour de France. The crank set will be available as after market product from spring 2008. 

So who is going to get this????Big%20smile
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And so we say goodbey to the last great alloy crank. I think the DA alloy crank is one of the best ever made. Carbon suck...

Have a look at this part: The FC-7800C has an aluminium core to realize a lightweight yet very rigid construction
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I know. Did some research on the development. I still think the alloy one looks better. And no cyclist will ever feel the 10% improvement in rigidity.

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Now the kempekkers will say that Shimano copied the use of carbon fibre from them...... watch this space some dumb kempekker will make a silly statement again or start his own shoulder slapping posting. They are all so predictable.

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It looks good but would have looked better if they did not make it with the weave pattern but rather the fibre pattern that Campy/Fulcrum has got.

 

 
Posted

 

Now the kempekkers will say that Shimano copied the use of carbon fibre from them...... watch this space some dumb kempekker will make a silly statement again or start his own shoulder slapping posting. They are all so predictable.

 

Looks like Shimano copied Campag... Tongue

 

Posted

The aluminium frame ensures a stiff set-up for optimal power transfer while the carbon saves weight. In numbers: weight of this crank set (including bottom bracket) is 709 grams and it is 10% stiffer than the aluminium Dura-Ace crank set FC-7800 that is already famous for its rigidity.

 

Oh dear, here we go again. Lighter, yet stiffer. Stiff, yet compliant. Carbon, yet aluminium.  Like Campy, yet with a twist. Silver, yet black. New yet classic. Expensive, yet worth it.

 

Isn't marketing speak wonderful? I wonder what "optimal power transfer" means and how they've managed to optimise this over a 1930s Stronglight steel crank or indeed, over the crank fitted to a child's trike.

 
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And so we say goodbey to the last great alloy crank. I think the DA alloy crank is one of the best ever made. Carbon suck...

 

For the 31g saving over the std DA cranks' date=' I'll stick to my std units too.

 

I WANT ----NOW ! where can i order from ?

 

$1400 pre order on competative cyclist:

 

or a little better at ?510.63 on chain reaction cycles:

 

 

As much as the crank looks quite cool, If I was going to be a weight weenies, there are plenty lighter cranks out there for less

 
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If I have a look at the pictures of the disection of the crank it strikes me as though the carbon is really just a cover for the metal below.

 

 

 

Oh yes I agree with greatwhite, for 31 grams, I stick to my current DA thanks. besides, I will just have to remember to go to the toilet before I go and ride. There you go, 31grams saved...

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