Well i have a 750F so my storage space is quite a bit more than my old K, but when i got my bike it had a flat tire kit in it. Patches, glue, a braided hose and an adapter that threaded into the spark plug hole and used engine compression to re-inflate the tire afterwards. Neat idea. I keep feeler gauges, screwdrivers, a leatherman, OE sparkplug socket, 2 packs of fuses, extra set of plugs, a point file and a hammer head in my "trunk"...