| 摘要 |
The present invention relates to an electric transmission for a bicycle, which controls the speed of a bicycle according to the gradient of a road or driving habit and improves driver convenience by facilitating and simplifying a speed change. The electric transmission for a bicycle using an electronic processor comprises: a drive side chain transmission (11) which moves a chain to any one among multiple sprockets installed in a drive part of the bicycle; a rear wheel side chain transmission (12) which moves the chain to any one among multiple rear wheel sprockets installed in a rear wheel shaft of the bicycle; a drive side speed change wire (13) which operates the drive side chain transmission (11); and a rear wheel side speed change wire (14) which operates the rear wheel side chain transmission (12). |
