I don't think dirt bikes do, but I'm fairly certain road bikes do.
It's called a stator EDIT: Bikes have Alternators, or, Generators, just like cars. Alternators are usually inside the timing cover and not easily visible, like on a car. Older bikes may have a very visible little 6-volt generator on a vee-belt.
alternators are classified as stators and rotors
Firstly, no you must not pick the particular Alternators
This question is not clear since alternators produce alternating current.
Make sure the alternators are properly installed and aligned.
http://www.techsupportforum.com/archive/index.php/t-57498.html
Leisure Lakes Bikes sell a huge range of bikes. They sell mountain bikes, road bikes, folding bikes, BMX bikes, Hybrid bikes, electric bikes and kids bikes.
One can research the prices of used alternators by going online and looking up alternators of the right sort on Amazon. There are various different merchants there so they will have various prices.
Yes.
Claud Butler make a number of bikes for both men and women. They make mountain bikes, hybrid bikes, city bikes, road and touring bikes, electric bikes and bikes for juniors.
Alternators produce AC, which is rectified by diodes if DC is needed. Dynamos produce DC by using a commutator.