Depends on the type. A regular bottle dynamo will come with an assembly bracket that'll either clamp on to one of the fork legs, or one of the seat stays. Then you just have to wire it up to the light(s).
A bike dynamo may power a small radio, but you'd have to turn it on manually first.
Reflector, lights, dynamo.
To provide electricity for the bike lights without having to rely on batteries.
the fit co bike is the best
Fit Bike Company sells everything BMX. From bicycle seats to helmets, Fit Bike Company has anything one might need to ride a bike and several BMX licensed products.
Battery operated ones are just like flashlights in another shape. Dynamo operated ones are also very much like flashlights, but w/o the battery compartment. Instead they have a dynamo(AKA generator) stuck somewhere on the bike which draws power from the bicycle's motion to power the lamp.
The downhill forks will fit on a normal mountain bike with a little fabrication.
if your gonna get a fit, dont get a 2010 model, they are designed to make you buy more and more fit products and most other parts never fit. if you can get a fit flow, there amazing dude.
a fit is better than a Sunday
hub dynamo, bottle dynamo, bottom-bracket dynamo
how do i fit a clutch on my grizzly 12 dirt bike