I'm sure your "touring mode" is still more intensive than my normal mode.
I've ridden almost 1000 miles this year. My single longest stretch where I rode without stopping was 10 miles. My 2nd longest one was only 6 miles.
My favorite ride is one of about 25 miles and I would make 6 stops during it. Not stopping because I'm fatigued, but only because I enjoy stopping to look at things, stretch a little, or stop in a town to check out an art gallery or bike shop or bakery. My 25 mile ride would take 3-4 hours to complete, well, there have been times when they've taken 6-7 hours when there are towns with old historic districts or beautiful parks on the trail.
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"Too often I would hear men boast of the miles covered that day, rarely of what they had seen." Louis L'Amour
There are two types of road bikers: bikers who are faster than me, and me. Bruce Cameron - Denver Post