Drive unit of a vehicle which can be driven by muscle power and / or motor power

Abstract

The invention relates to a drive unit (1) of a vehicle (100) which can be driven by muscle power and / or motor power, in particular an electric bicycle, comprising a motor (2), a crankshaft (22), a transmission (4) which couples the motor (2) and the crankshaft (22) together, and a housing (9), within which the motor (2) and the transmission (4) are arranged, wherein the motor (2) is coaxial to the crankshaft (22), the housing (9) has a motor region (95), within which the motor (2) is arranged, and the housing (9) has the largest external axial dimension (95a), with respect to the axial direction of the crankshaft (22), at the motor region (95).

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