If bikes were as ubiquitous as cars, the ozone might not look like lace. In addition to being a great form of exercise, biking is also a great way to deal with heavily trafficked urban streets. In case you don't want to pedal, but still don't want to sit in traffic, there is the YikeBike. This mini two-wheeler is electric, so there is no need to pedal. It has been redesigned in other ways as well. The handlebars are next to the seat so you sit upright instead of hunched over to improve visibility. The speed is limited, so it can only go about 12 mph (20 km/hour), even downhill. Being fairly new, this bike costs around $5,500 — considerably more than a really nice road bike. Check out this video to see the YikeBike in action.