Cool My bike is a Bianchi Imola road bike, so there are no bosses to put a standard rear rack on. They do make rear racks that attach to the seat stem, however, most of them have a max weight of 15-20 pounds. Batteries are _not_ light plus I'd have to move my seat bag and the ulock from where they are now and put them on the rack instead if I did that... and the ulock is at least 5 or 6 pounds. So I'd be approaching max capacity or more if I ended up that way

What I could do is get 4 Lithium-polymer cells and make a custom battery. That would give me 14.4v which would be fine for a 12v horn. Plus, LI Polymer is light and its moldable, so I can just about put it anywhere.

Hrm....

Mel