The true value of a touring bike is learnt only in the long run. At 5,000 miles, almost anything can feel new. At 50,000, the story changes. The seat starts squishing, the wind protection starts to matter more than the spec sheet, and a weak chassis or a fussy engine becomes impossible to ignore. If you don't want such a bike, then you're in the right place. That's because the ones listed below keep their composure. They are the ones that still make a long day feel easy, and a long ownership stretch feels worth it.

Source: https://www.topspeed.com/touring-bikes-feel-great-after-50000-miles/