Abstract: The invention is a single motor power unit, suitably for being mounted onto a bicycle frame, which is fitted with a motor (7), related power supply (13), bearings (8), crank shaft pinion gearhead (11), propulsor pinion gearhead (10), planetary gearbox (15), and central processor unit (12). It is characterized in that the propulsor pinion gearhead (10) is connected to a pinion with dynamometric system (19), having an at least approximately identical axis, and to a planetary gearbox (15) therethrough, while the inside of the bearing (8) is in fixed connection with the crank shaft (9) and the outside of the bearing (8) is in fixed connection with the crank shaft pinion gearhead (11). The invention is also the procedure for placing the power unit according to claim suitably into a bicycle frame.

Abstract: The invention is a 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). It is 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 bearing (8) is in fixed connection with the crank shaft pinion gearhead (11). The invention is also the procedure for placing the power unit according to claim suitably into a bicycle frame.

Abstract: The invention is a single motor power unit, suitably for being mounted onto a bicycle frame, which is fitted with a motor (7), related power supply (13), bearings (8), crank shaft pinion gearhead (11), propulsor pinion gearhead (10), planetary gearbox (15), and central processor unit (12). It is characterized in that the propulsor pinion gearhead (10) is connected to a pinion with dynamometric system (19), having an at least approximately identical axis, and to a planetary gearbox (15) therethrough, while the inside of the bearing (8) is in fixed connection with the crank shaft (9) and the outside of the bearing (8) is in fixed connection with the crank shaft pinion gearhead (11). The invention is also the procedure for placing the power unit according to claim suitably into a bicycle frame.

Abstract: The invention is a 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). It is 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 bearing (8) is in fixed connection with the crank shaft pinion gearhead (11). The invention is also the procedure for placing the power unit according to claim suitably into a bicycle frame.