| 摘要 |
A bicycle frame includes a head tube rotatably supporting first and second handlebars, and the handlebars each selectively pivot to a tow position extending away from the head tube. The bicycle frame includes first and second primary wheel mounts receiving first and second wheels, respectively, in a riding configuration of the bicycle frame, and one of the primary wheel mounts includes a first drive system coupling operably engaging one of the wheels with a bicycle control and power system. The bicycle frame further includes first and second secondary wheel mounts receiving the first and second wheels, respectively, in a towing configuration of the bicycle frame, and one of the secondary wheel mounts includes a second drive system coupling operably engaging one of the wheels with the bicycle control and power system. |
