After how many miles a day do we get diminished returns with our fitness?
What's your opinion? Is it 40? 50? 70? 100? I have done 60 miles recently and 70, but I don't feel like there are many other benefits once you get past 40 or 50. I could be wrong. Maybe it's different for everybody? With cycling, you can't really customize the intensity of your whole ride as easily due to stop signs, different road conditions, hills, downhills, etc... The benefit of cycling is that it's more fun so you do it more. But minute per minute, hour per hour, there are more challenging workouts. Now going up a big hill is really a tough workout, but not all routes are going to be the same.