And the fact that the lack of effort involved means you have to wrap up warm - or get very cold - serves as a reminder as to how much less exercise riding an electric bike involves.

BBC: Electric bikes: For people who don't cycle?

Though staging a new race is a huge challenge, Tamarro is an experienced organizer of 10Ks, so he knew how to calibrate the mileage, a tedious exercise that requires riding a bike and counting notches on a clicker.

CNN: Forget Boston: Runners find alternatives to big race