All Yamaha parts are over priced here in OZ, that's why I import every part for my XTX. I do not worry about my XT's warranty any more as it is to much like hard work dealing with Yamaha Australia. I just imported from Greece new front & rear fenders for AU$156.00 postage included, Yamaha Australia price $370.00.
I buy 90% of my parts from Yamaha Greece, send Maria an email for a quote she is always help full, tell her Kevin from XT660.com forum sent you..
cygnus.2004@gmail.com
Or you can do my rear rubber mod or buy these.
http://cgi.ebay.de/Ruckdampfer-Yamaha-XT-660-X-R-DM-XT660-XT-660-XT-NEU-/330443416831?pt=Motorrad_Kraftradteile&hash=item4c eff664ff