| 摘要 |
<p>A bicycle (1) which, for a given muscular effort input, affords improved performance, comprises a frame (2), two road wheels (4,5), a pedal-operated drive (6) acting on one wheel (4), a transducer (9) associated with said drive (6) to continuously monitor the muscular effort and issue a corresponding signal, and a motor unit (24) acting on one wheel (5) and being controlled by said signal.</p> |
