As with most things in the automobile world, rear view mirrors also have a procedure to use them to get the best view with minimal blind spots.

2017 Harley Davidson Street Rod 750 Instruments
While adjusting the mirrors, the bike should be kept upright with the front wheel pointing ahead

6) Sit In Your Riding Position – The first step is to sit on the seat in the exact manner as you sit while riding. For cruisers and commuters, one sits in a laid back or upright position while in the case of sport bikes, one sits in a leaned-forward position.

5) Point The Front Wheel Straight – The next thing one needs to do is point the front wheel straight ahead. While it is a necessity on bikes with handlebar-mounted mirrors, a straight handlebar eliminates any lean even on a motorcycle with mirrors mounted on the fairing.