| 摘要 |
<p>A bicycle has a rear wheel with a belt drive. The bicycle rear wheel is supported on either side by a flange with two down-tubes from the saddle tube, and two horizontal tubes from the pedal crank tube. The right hand down tube joins the right hand horizontal tube in an L-shaped profile at a point forward of the rear sprocket. The down-tube by-passes the belt between the belt and rear wheel.</p> |
