If you can wait a few more weeks, I have completed a 5 gallon tank conversion for the Hawk GT. As soon as my bike is back from the paint shop (color matched the tank), I will be posting pics here and auctioning off 2 tanks on ebay. It has been 6 months in the making, but I think you will be inclined to perhaps purchase one when you see the finished look. This tank was meant for the Hawk!!
Your idea of putting fuel in the frame sounds really cool though. Good luck. Anyone interested, please feel free to email me at
macfartlane@cox.net I will let you know when I post pics and list the tanks. I just rode 250 miles and still had not hit reserve yet.....wahooooo