| Look ZED |
We briefly presented this piece of art on the 5th of July.The newest ZED crankset will set new stiffness and lightness standards at its release during the fall.
The crank arms, whose stiffness to weight ratio is almost twice as important as the Shimano Dura-Ace, are claimed to be 320g. The traditionnal or compact transmissions will be compatible thanks to a dual chainring screw position. Beside this, the length of the crank arm will be adjustable according to the preferences, through the TriLobe system.
Absolutely a wonderful component, which is well thought too, both because of the standard/compact transmission compatibility, and because of the arm length adjustment.
Nevertheless, we have a few negative points to mention. First this part will only be compatible with the 596 Triathlon frame, and the newest Look Keo ZED pedals, featuring a carbon body and a titanium axle.
More informations on:
Cyclingnews (gamme complète)
CycleSuperStore (pédalier et pédales)
Lew & Longo - Olympic games
Finally! The Shimano electronic groupset has been officially unveiled and it will be available for 2009.
Although almost all the features are unofficially known since months, it's good to know the exact specifications. This first electronic groupset to be released, will be 113g lighter than the current Dura-Ace 7800 groupset, and about 68g heavier than the Dura-Ace 7900, 2009 version.
The advantages of these kind of groupsets didn't seem obvious at a first look. However, Shimano reassured us with some interesting arguments:
- Very fast and accurate shifting:
* the distance to shift is very short
- Electric cables instead of mechanical cables
* no more contaminated cables in the housings after rides under the raid
* the rear derailleur is equipped with a servo motor
* the derailleur precision is kept after a first initial setup
- Battery length of life: 1000km
* complete recharge in 1 hour and a half
- Some integration in a bike frame may be possible soon
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