| 摘要 |
PURPOSE:To prevent the generation of soil with the utilization of an existing parts without using a special parts for protecting a device from the soil in the case of using an electronic detecting means as a detecting means. CONSTITUTION:In a brake chamber B, which consists of a brake drum 23 to be rotated integrally with a hub 20 of a wheel 5 and a brake panel 24 fixed to the car body frame side so as to seal an opening part of the lateral side of the brake drum 3, a signal rotor 31 to be rotated with the brake drum 23 is arranged, and a sensor 30 for detecting the rotating speed of the signal rotor 31 is fixed to the brake panel 24 side to form a speed detecting device for motorcycle. |
