| 摘要 |
In the case of a vehicle with a pedal crank drive such as a cycle in the form of a bicycle, tricycle or motor cycle, with a driving sprocket (12) mounted in a bottom-bracket bearing (10) and a driven sprocket (14) arranged coaxially on a wheel hub, the driving sprocket (12) and the driven sprocket (14) are connected to each other by a revolving toothed belt (15). <IMAGE>
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