These Cagllari Daytona pocket bikes are the best bang for your buck. Outperforming much more expensive pocket rockets, the Cagllari Daytona bikes feature durable alloy construction and a torquey high output 2-stroke gas motor.
[From Cagllari Pocket Rocket]
These start at $169. A small motorcycle, 2-stroke at that, for a whole lot less than a pedal-powered bike, or at least what a real enthusiast will pay for a bike. This just seems wrong on so many levels.