'Cos you got wiring to and from...let's see...headlight; headlight hi/lo switch; horn button; turn signals and running lights switch; kill-switch; ignition switch; start button; turn-signals and on some bikes, headlight on/off switch...and all switches mounted on the handlebars !!, and not including wires from the loom to service rear signals, brake light, tail-light..oh, I forgot the ignition coils and the front brake light switch wires...bucket's the only place to accommodate all this !!