My fave is my 2011 BMW R1200R. It's very smooth and comfortable. I bought it in Minnesota and rode it home 300 miles that evening. Rode to a rally east of Toronto last fall- an easy 700 miles in a day.
Also have a 1998 Suzuki Marauder in SC. I've done a good bit of traveling on it, but 600 miles in a day is an uncomfortable stretch.
Sent from my iPad using Tapatalk