No it only ha to have 1 mirror.
26709. (a) Every motorcycle subject to registration in this state shall be equipped with a mirror so located as to reflect to the driver a view of the highway for a distance of at least 200 feet to the rear of such vehicle. Every motor vehicle, except a motorcycle, shall be equipped with not less than two such mirrors, including one affixed to the left-hand side.
no. most custom motorcycles DO NOT have any
Only one on left side no blinkers on bikes before 1974
If your motorcycle is old enough to have been sold new without them, you are not required to have them.
No
Motorcycle mirrors can be purchased from a number of online shops. Options include the motorcycle manufacturer, such as Kawasaki, Honda, or Ducati, or from third-party stores, like Muthco, Amazon, or Dreamcycles. Motocycle mirrors are also available on eBay.
Most states require 1 mirror mounted on the driver's left side
If the Motorcycle is street legal and intended for street use, Yes. However if the motorcycle is a dirt bike and not being drivin on the streets then NO.
You need at least one to be legal
2 or at least used to be-driver's door and windshield or both doors minimal if missing center
Not Enough............
Yes
By installing or attempting to install them. Many are interchangeable, or it will become apparent which goes to which.