Are parts out there for this bike? I´d like to buy one for daily commutes for the next 5-6 years. Will I be able to upgrade the horn and lights all around to more powerful units using the same sockets? What do you think about BACKOFF, will it work on this bike and will it help make me safer in heavy and fast traffic? Can I add a H D Sportster horn or other aftermarket horn to be heard better? Is this cycle 6 volts? It needs tires, any suggestions for good riding characteristics at a decent price? Thanks for any suggestions you make, Indi