Originally Posted by gen
I think the big difference between the SMT and the S10 is the 19" front wheel on the S10. If you know you're never going to go off road then the SMT might be the better bike. If you want some dirt ability then I think the S10 is better.
Agreed...although the SMT is much lighter (I weighed mine at 467 lbs wet).
The SMT is very capable of doing long distances comfortably. I rode mine from Seattle to Salt Lake last year, including 2 600+ mile days and plenty of crap weather, and I'll be riding it to Laguna this year (hopefully in better weather). The stock bags are small but worked OK for me with a tail bag...but the ADV bags will fit it if you need more space and have the $1,000 to drop. Givi also makes a pannier system. I only get about 30 mpg in town, but on longer rides it reliably gets 40 mpg. 175 miles on a tank is pretty easy to do and still have fun in the twisties.
The SMT will do fine on fire roads given it's geometry and light weight. A larger front wheel would be good for rougher trails though.