I figure anything over 20 miles one way is a long commute. Mine is only 15 miles each way; I do that 3 or 4 times per week, depending on my days off and work trips, i.e., going to the airport instead of the office.


We used to have a guy here who biked about 40+ miles each way, every day (he absolutely crushed it during the May-is-Bike-Month challenges). I didn't really start bike commuting until after he retired, but I still hear stories about him leaving for work at 4 am, literally wearing out bicycles every couple of years, and having to re-build bottom brackets in the parking lot before his return trip home.