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@pifko
Dual pivot on the front, single on the rear.
According to the spiel on the Campagnolo website:
"Thanks to its double-fulcrum architecture, the front brake is able to grip the rim with around 70% of the total braking force; the rear brake, which only has a single fulcrum, stops the rear wheel from swerving - due to the lightening of the rear - thanks to the application of a force that is lower than at the front.
The single pin structure also makes it possible to save a few grams compared with the double-fulcrum one.
The analogy is obvious: think of the ABS on cars which prevents wheel locking when braking and think of all the safety this has provided. Differentiated Campagnolo® braking aims to give you the same safety on your bike."