I have always had a difficult time with the mirrors on my 1982 CB450SC Nighthawk. I could adjust them so that I could see the sides but never behind me. My daughter got me a set of Bikemaster mirror extensions from the Fortnite website for Christmas. I just took out my bike from winter hibernation last weekend and installed the extensions. What a difference they make. The extensions give me so much more view all around me. Highly recommend them if you have difficulty like I did with my bike.