You can grasp the Chorus Ergopower controls any way you want you'll always feel safe and responsive. The ergonomic design of the Ergopower body now made of a lighter and stiffer material enables you to grip the controls more firmly. The brake lever with double curvature and the classic double lever of the brake/shifter controls guarantee efficient braking in all conditions and easier operation. ULTRA-SHIFT ERGONOMICS. Ensures a firm grip on the handlebars and fast, precise control of the levers. The special ergonomic design makes it possible to assume three different hand positions on the levers compared to the two traditional ones. NEW VARI-CUSHION BRAKE LEVER HOODS WITH VARIABLE DENSITY AND SURFACE FINISHES Natural silicone material with differentiated areas to follow the grip of the 1st and 2nd finger. The grooved areas drain away water, keeping the brake lever hoods dry and improving grip. Internal weave to create a variable thickness that guarantees maximum possible comfort. ULTRA-SHIFT MECHANISM WITH DIFFERENTIATED MAXIMUM NUMBER OF UPSHIFTING CLICKS DEPENDING ON THE STARTING SPROCKET The only mechanical groupset on the market that allows multiple shifting up to 5 sprockets . Rapid positioning on the combination desired when there is a steep increase in the slope or when approaching a bend up to 4 combinations with chain on the frst 4 sprockets, up to 3 combinations with chain above the fourth sprocket . BRAKE LEVER HOODS AND CABLE HOUSING ARE AVAILABLE AS SPARE Ultra-Shift ergonomics are improved with a reduced 60mm curve to fit more bars Improved Vari-Cushion hood ergonomics and compound for comfort Double curve brake levers Multi shifting technology 350 grams