Note that perspiration and metabolism in general varies greatly by person. Some people can ride a bike and not sweat; others will sweat, whatever they do (even if they are in a reasonably good shape).

I can do 160 km in a day on a bike (maybe more but that's the record over past year), but I can't do 2 km so that I wouldn't have to change shirt and preferably take a shower if I'm going to a business meeting.