A new system, but with the same resistance and stiffness that we've come to expect from Campagnolo's Chorus range. Using new aliminium bolts, Campagnolo is able to reduce the wieghtr by 53% compared to steel and 22% compared to titanium and this also prolongs the component life.
Campagnolo have also made a created a completely new design for both the ionternal and external components. The new external shape enables the rear mech to move at a dfiferent angle, and the internal design keeps the chain nearer to the cassette to ensure better power transmission.
The special chainring positioned inside the gear body acts on a rectangular section spring that allows the component to move along a trajectory that perfectly follows the curve of the sprockets, on both the zz-23 cassette and the new 11-29.
A carbon front plate and cage means maximum rigidity, fast actuation and reduced friction.
What are derailleurs and mechs?
Derailleurs and mechs are two names for the same thing – the parts of your drive train that move the chain between chainrings for the front derailleur/mech and between the cassette cogs for the rear derailleur/mech.
Who needs a derailleur or mech?
Not all bikes have derailleurs, but if your bike has conventional gearing rather than singlespeed or hub gears, you will have at least a rear derailleur. These parts are exposed and somewhat vulnerable to damage, so you may need to replace them if this happens.
What are the choices?
Your choice will largely depend on what is compatible with the rest of your drivetrain, but there are different options for road and mountain bike, by the big three manufacturers, Shimano, SRAM and Campagnolo.
What should I buy with them?
If you’re replacing a front or rear mech, you may need to replace some other parts of your drivetrain as well, for compatibility or because you want them to wear together. These might include the chainrings, rear cassette or chain.
It’s not just compatibility with your other components you need to consider with a mech replacement. Derailleurs also have different fittings for various frame compatibilities, including braze-on fittings and a bolt-on collar.
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