I am 6'4" myself and after 30 years of distant love with Moto Guzzi - based on a MO review by Yossef and a try - I now ride a Breva 1100. It is somwhere between a real naked and a tour bike, with all necessary lagguage boxes, horse power, speed and torque. A very comfortable (!!) bike in the long run. Check it out here:
http://www.motoguzzi-us.com/Nuovi_modelli/breva1100/ph_gallery.asp?modello=breva1100&pagina=gallery
Gyorgy
http://www.motoguzzi-us.com/Nuovi_modelli/breva1100/ph_gallery.asp?modello=breva1100&pagina=gallery
Gyorgy