I tried to get my wife into biking, but she quickly lost interest. Then we borrowed a tandem, and she loved it! The only problem was, she rarely contributed to the forward motion of the bike. She just sat there and enjoyed the scenery. This damn near killed me. Going up a hill with only one person applying power is a good way to get either in shape or into the emergency room with a heart attack! So we returned the tandem and now I bike alone. My wife has taken up power walking with some of her girl friends.