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Also compatible with Athena EPS Groupsets.
Campagnolo have also made a created a completely new design for both the internal 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.
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