Originally Posted by
alan s
About the same length as my commute. However, I drive 10 miles and ride 15 each way. Pretty sure the 15 on a human powered bike is more exercise than 25 on a battery powered bike.
Not for me. I have an electric Copenhagen wheel I use once or twice a week depending on how tired I am. Without the wheel I burn 1500-1600 kJ commuting. With the wheel I do the same distance but the time is less so my energy drops to around 1200kJ. Another way to look at it, without the wheel I burn about 38Cals/mile. With the wheel it drops to 30 Cals/mi.
I pedal the same way whether or not I have the wheel on the bike. I just go a little faster with the wheel.