multifunction hand tools comprised of one or more of allen wrenches, spoke wrenches, cone wrenches, pedal wrenches, headset wrenches, sockets, screwdrivers, tire levers, chain tools, air pump adapters, files and bottle openers, sold as a unit; couplers, allen wrench bits and sockets for use with such tools; sheaths and pouches for such tools, sheaths and pouches for such couplers, allen wrench bits and sockets, and sheaths and pouches for the combination thereof