beng1

I don't think miles matter as much as how hard you are pushing while riding them. I have been riding over 100 miles per week for a long time, and I don't think that is a lot of miles at all, but if it has made me any stronger or faster it is because for half or more of them I am going as fast as I can, not touring, commuting or sight-seeing. Riding easy miles is good exercise, so is walking or mowing the lawn with a push-mower.

Riding as fast as you can has the benefit of getting you to the same or better fitness level in less miles and in less time. I have a lot of other things to work on and take care of so I don't have time to ride any more than 400 miles a week, and in the future I see I may not have time for even that much, so any time I spend riding I want to get as much out of as possible, and at only 60 years old I can still get quite a bit out of it.