Whynot?
The gz250 is capable of doing more than short trips. Patrick Henry in Nashville, TN (
http://home.comcast.net/~pat1776/AlaskaStory/index.html) did a 10,000 mile trip in 19 days a couple of years ago, most of it on the freeway. I just did a 2500 mile bike trip, over half was interstate riding (70-75 mph). At this speed though, you dont have much passing power, if any. Have fun and be careful