Double motor power unit and procedure for mounting the unit onto bicycle frame

Double motor power unit, suitably for being mounted onto a bicycle frame, which is fitted with at least two motors (7), at least one power supply (13), bearings (8), crank shaft pinion gearhead (11), at least one propulsor pinion gearhead (10) for each motor, at least one planetary gearbox (15) for each motor, and at least one central processor unit (12), where the crank shaft pinion gearhead (11) is connected to a crank shaft (9) through bearings (8), and the central processor unit (12) is in wired or wireless connection with at least one motor (7) through a switch (14), characterized in that the propulsor pinion gearheads (10) are connected to pinions with dynamometric system (19), having an at least approximately identical axis, and to planetary gearboxes (15) through the pinions, while the inside of the bearings (8) is in fixed connection with the crank shaft (9) and the outside of the bearings (8) is in fixed connection with the crank shaft pinion gearhead (11).