I am a 75 woman who loves bike riding. I had to give up riding my regular bike because it was too high and presented balancing problems for me as I slowed down. The Zizzo can be adjusted to take care of this problem. I love the way it folds up and fits in the trunk of my Honda. On my second bike ride I was challenged by a squirrel,who ran between the front and back wheels of the bike. I felt a bump and the squirrel scampered away. I couldn't believe it. But that's the kind of adventure that I seek with bike riding. This is a convenient and wonderful choice to keep biking for an aging population,who still wants to enjoy nature and biking.