| 摘要 |
<p>A bike exerciser includes a resistance device connected to the frame of the exerciser and the resistance device has a base board 50 fixedly connected to the frame and a movable board 43 movably restrained on the base board 50. A plurality of magnets 431 are connected to movable board 43. A lever 211 is connected to the frame and a connection member 42 is connected between the movable board 43 and the lever 211. The connection member 42 movably extends through a tube 41 and a first end member 410 is connected to an end of the tube 41 and a second end member 430 is connected to the movable board 43. A spring 421 is mounted to the connection member 42 and biased between the first end member 40 and the second end member 430. The movable board 43 is moved to let the magnets 431 move toward the wheel 34 of the exerciser by pivoting the lever 211.</p> |
