| 摘要 |
<p>The present invention relates to a power transmission device for a chainless bicycle, and more specifically, to a power transmission device for a chainless bicycle which connects a pedal with rear wheels so as to transmit power without a chain, easily transmits the power to the rear wheels by transmitting the power to the rear wheels using the principle of the lever for a power transmission method and can reduce a production cost by simplifying components thereof.</p> |
