| 摘要 |
A motor drive (10) for a bicycle is provided. The motor drive includes a drive wheel (24) and a motor device (26) driving the drive wheel. The drive wheel contacts the ground and moves the bicycle by rotating friction between the drive wheel and the ground. The motor device includes a fixing portion (30) that attaches the motor device to the frame of the bicycle, and a driving portion (32) that holds the drive wheel and drives the drive wheel. The driving portion (32) is pivotable with respect to the fixing portion (30) between a parking state and a driving state. The drive wheel (24) is spaced from the ground in the parking state, and contacts the ground in the driving state. |
