According to Wikipedia…. A blind spot in a vehicle is an area around the vehicle that cannot be directly observed by the driver while at the controls, under existing circumstances. On a motorcycle or in a car your blind spots are at 180° on either side, parallel to your shoulders.
The driver of the blue car can see the green car on his side view mirror but cannot see the red car that is adjacent to him without turning his head, as it is in his blind spot.
Solution. Well for a car that would involve adjusting your side mirrors forward to increase your field of view and increasing the use of your rear view mirror or installing a rear view camera.
Well it’s not that easy when you are on a motorcycle , rear view is not that much of an issue on normal street bikes , but for sports bikes and track bikes , though there are a couple of prototype and DIY rear view cameras available such as this one .
The only effective way to see round your blind spots on a motorcycle is to add a bubble mirror to your existing side mirror. They bring blind spots into view, but their optical properties impart a great deal of distortion so as to make it difficult to judge distances.
But in the least you will avoid the certain rear end collision by not having to turn your head to your blind spot.