| 摘要 |
<p>A speed control device (100), which is adapted to be used in connection with a derailleur type bicycle or internal gear hub type bicycle, has one operation mode for up-shifting the speed and another operation mode for down-shifting the speed. The two operation modes can be affected by an operation lever (44), and with the operation lever (44) being pivoted in a second rotation direction (R2) for the up-shifting operation and in a first rotation direction (R1) for the down-shifting operation.</p> |
