Originally Posted by thomson

I have generator systems. One bike has the Dynotec 12v system (bottle generator) and the other has a Shimano hub generator. I generally use the one with the Shimano hub generator when I am training and the Dynotec equiped bike when touring.

To me the generator systems are the way to go. Their beam is large and the brightness is not as high as the NiteRider systems but, for me, adequate. I never have to mess with batteries, I can ride as long as I like and the best thing is makes me feel more self sufficient. I keep trying to talk my son into buulding be a charger system that I can use to charge my cell phone while toruing.