I don't think you need a 250cc engine to make your trip.
Do those bikes truly have 250cc engines? Sometimes the Chinese label bikes with 223cc engines as 250cc motorcycles. :roll:
I agree with Katoranger. I would place my trust in an air cooled, Chinese motorcycle with a 200cc engine.
I am unfamiliar with all the motorcycles you mentioned in your post.
Spud
__________________
Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894