| 摘要 |
<p>A bicycle (10) which comprises a triangular frame (11), a front fork (12) including a bent portion with a vectorial angle of 90 degrees, wherein the length of the upper portion (31) of the front fork being longer than that of a lower portion (32) of the front fork, and a vertical arm (29) extends from the lower portion end thereof, and a rear fork (13) which has a bent portion with a vectorial angle of 90 degrees, wherein the length of the upper portion (33) of the rear fork is shorter than that of the lower portion (34) of the rear fork, whereby the bicycle is accelerated the forward moving speed by the bicycle rider.</p> |
