Regular distance bicycle safety.

The present invention relates to an adjustable spacer bicycle safety, which allows the rider to signal with either hand, fast, convenient and secure, the situation of the minimum safe distance when being advance by another vehicle, thereby ensuring not being reached by inexperience or carelessness of the driver who advances to establish a security zone between the lateral edge of the cyclist and the vehicle that will make overtaking. With its use would be achieved very significantly reduce accidents annually in which hundreds of cyclists injured