Today I also experimented with mounting the Tusk D-Flex Handguards to the stock handlebars on my Zongshen RX3. After switching to a spare, master brake cylinder for my Zongshen Sierra, I tried several different arrangements of the mounting hardware, and found success.
Today I ordered a set of black, D-Flex Handguards, and I plan to mount them tomorrow morning. Besides switching to a different master cylinder, I will also need to modify the handguards slightly.
I intend to shorten the handguards, and tap the end of the handlebars to accommodate a 1/2-inch bolt. Since I will be mounting the handguards nearer the end of the handlebars, I will also use the standard, 7/8-inch mounting hardware.
Needless to say, I will take photographs of the finished installation, and I also plan to go for a test ride.
__________________
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