RevPack Seat Pack
I just picked up a Revpack Seat Pack, maybe the ideal piece of motorcycle luggage if you're only considering getting one bag for your YZF600R. Though tall (the bag measures 12"' high, 12" x 12" x 14" overall) it fits perfectly on the passenger seat. Quality is first rate, and though it lacks the usual separate compartments and zippered outside pouches, the one single compartment keeps everything inside in what's claimed to be a waterproof enclosure. The only drawback really is price-- $99.95, though you do get what you pay for here. Also available is a "Junior" version for those who prefer less bulk. - Mark S.