When I bought my new 1978 Yamaha IT175 enduro bike, this bike was also brand new and I looked at one at the dealer. It has the 500cc thumper engine from their motorcross bike.
Looking back I wish I had gotten the SR500 instead, because I did not get into street bikes until 5 years ago, and now I realize how much I missed out over the years.
But on the other hand the '78 SR500 had a weird counter balance shaft thing that tended to tear itself apart - So I dodged that bullet. They still make and sell them as the SR400. Would not mind having one at all - they have been in production since '78.
From my perspective a thumper UJM bike is the quintessential motorcycle.
Last edited by KCW; 11-15-2017 at 09:29 PM.