POWER-TORQUE™️
The Power-Torque was designed for entry-level groupsets, such as Athena and Potenza (no longer in the catalogue).
t provides for a through crankset axle, which is attached to the right crank only. The left crank is fitted at the and of the axle thanks to a Splined coupling system, similar to what happens at Shimano and Sram.
The first version of the Centaur groupset also used this system, which is now obsolete: today the Centaur - like all the rest of the Campagnolo range - relies on the Ultra-Torque.