they made several upgrades through out the years, in 06 they changed the swing arm design, up graded the brakes, changed the seat, raised the stem height, changed the compression and the cc's to a 449, in 07 they upgraded the oiling system, added fat bars.
i would look for a 07 or newer model, but all are great machines
i would look for a 07 or newer model, but all are great machines