Here is the size 130/90-15 tire which has the most aggressive tread I have yet discovered.
This was the best off road tire available for the Zongshen Sierra, but it disappeared from North America when Zonghen America stopped importing it.
http://item.taobao.com/item.htm?spm=...83&ns=1#detail
I would hope CSC Motorsports would stock this tire, which will fit the rear wheel of
both the ZS200GY-2
and the ZS250GY-3.
However, in North America there are
many choices for 17-inch and 18-inch rear tires which have
far more aggressive treads. Besides greater choice, one can also get much better pricing when he is not limited to a single vendor.
__________________
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