| 摘要 |
<p>A frame unit for a bicycle may include a left frame body in which a part of an adjusting portion, a part of a seat tube, a part of a frame, and a left stay are integrally formed; and a right frame body in which a part of the adjusting portion, a part of the seat tube, a part of the frame, and a right stay are integrally formed, in which the seat tube and the frame are integrally formed by adjusting a length of the adjusting portion, and the left frame body and the right frame body are coupled integrally.</p> |
