Did Yellowstone in '15 with an xTerra pulling a 204 RBS Bullet
. Learned 25 ft length is measured from front bike pedal to counterweight box on back (350# tongue weight grows exponentially with any fresh water or only available storage
). We were 44 ft and did get into Mammoth Hot Springs. If you want to do distance, Walmart, etc. is the way to go, fast, cheap, no reason stick around. We hit the places that were interesting while moving.