Originally Posted by
mcours2006
Fifteen hilly miles is pretty a pretty hefty commute done twice a day, every day. I, myself, could probably manage to do it 3-4 times out of the week, but to do it everyday might wear me down quickly. I suppose if you're in relatively good aerobic condition, give yourself plenty of time so that you can cruise if you need to, and have a comfortable enough bike, it'll be fine, and you'll be getting two+ hours of exercise every single day.
For me, I took breaks when I needed them. Some weeks I'd bike all five days, some weeks just three. I also found a public park where I could leave my pickup truck halfway, and some days I'd drive halfway and ride halfway. The thing that got me worst was it was summertime in Texas, and it was one of those summers when we had 100 degree heat for nearly 90-straight days. The afternoon rides home were absolutely brutal until I got physically accustomed to it.
There ARE members of this forum who ride more than 15 miles each way nearly every day though. Some of our commuting forum members are serious athletes, and some of them look for longer rides to add to their daily mileage.