I attached the Garage Pro mounting plate to the luggage rack using the same three bolts which attach the stock trunk. Therefore, if I wish, I can switch back and forth from the Garage Pro Travel Trunk to the stock trunk, by merely removing the three bolts.
I placed three washers under each of the two front bolts of the mounting plate to provide a tighter fit between the trunk and mount.
I used 1/4" fender washers.
The Garage Pro (GP) Travel Trunk comes equipped with a foam mat to place under the mounting plate. You can place this foam mat upon the luggage rack as a template to mark the bolt holes. After placing the foam mat on the mounting plate, you can easily transfer the location of the bolt holes to the mounting plate itself.
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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