Data display unit for a bicycle

A running data display unit for a bicycle, comprising:

• wheel revolution detecting means located in association with a wheel of a bicycle in a manner in which no load is applied to said wheel, said wheel revolution detecting means providing pulse signal according to the number of revolutions of said wheel;
• running data calculating means coupled to said revolution detecting means, by which running data including the running speed, the running distance, the average speed, and the maximum speed of a bicycle are calculated based on said pulse signal provided from said revolution detecting means;
• running data calculation start and stop selecting means coupled to said running data calculating means for starting or stopping the calculation of running data by said running data calculating means;
• liquid crystal display means coupled to said running data calculating means for selectively displaying the running data calculated by said running data calculating means, a speed unit in association with said running data being displayed in said display means;
• speed unit display winking means coupled to said liquid crystal display means and said start and stop selecting means, by which winking of light in said speed unit display is started in response to the start of measurement selected by said start and stop selecting means and said winking of light in said speed unit display is stopped in response to the stop of measurement selected by said start and stop selecting means;
• and
• power supply means for applying energy to said running data supply unit.