| 摘要 |
The bicycle is designed with an electric motor having a rotor (26) and stator (27), which is arranged between the flange ring (23) and the axle (1). The rotor part of the electric motor is positioned under the flange ring. The flange ring is connected with the gear change across a side wall (22). The side wall is connected with an inner ring (11) which supports itself to a fixed wall ring (6) across at least one bearing (7.1,7.2).
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