| 摘要 |
The invention relates to an electric drive for a bicycle. The electric drive comprises an electric motor and a contact roller having an outer contact surface. The motor comprises a stator having plurality of stator coils as well as corresponding magnetic rotor elements. The rotor elements are fixedly attached to an inner surface of the contact roller. According to the invention, the contact roller encloses the stator. Particular embodiments provide a mounting assembly for mounting the electric drive to the bicycle's frame, preferably at a component of the bicycle adapted for mounting a kickstand recess.
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