As I stated on page one of this thread, the version of the ZS250-GY3 sold in Russia, the Minski TRX 300i, is reported to have a 17-inch rear wheel.
I found the rear tire size for the Minsk at the following links.
http://www.biker.ie/forum/showthread.php?t=205832
http://www.minsk-moto.com/en/enduro/trx-300i.html
If, indeed, 17-inch rear wheels are available, I hope CSC will tell Zongshen it wants the motorcycles with 17-inch rear wheels.
__________________
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