Your ZS250GS swingarm should also fit the ZS200GY-2, dual sport motorcycle, Doc.
I think your street bike might employ a progressive shock linkage.
When you have time, please post photos of the swingarm, rear wheel, shock linkage, et cetera. We might discover an easy way for Zongshen 200GY-2 owners to upgrade their rear suspensions!
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