Campagnolos new chorus eps range offers more than just your stnadard benefits of upgrading from your mechanical groupset it gives the rider superb ergonomics simplicity comfort and safety no matter what your preferred riding position a single click of the controls and youre headed to a whole new riding experienceone lever one action campagnolo control sets remain in their eps sets lever 1 operates the brake while levers 2downshift and 3 upshift operate the rear and front derailleurs