RevoPower Wheel
The RevoPower Wheel really revs up the adrenaline and is a wheel with a difference. This radical bicycle wheel has a 25cc two stroke chain drive engine in it, all the speed devils out there will love this thing. Because of the small size engine one wouldn’t need a license to ride thus its targeted at a wider demographic. It is capable of touching 20 mph and runs at 200 miles per gallon.
The wheel has a series of sprockets & chains and weighs less than 15 pounds (5 kg). The wheel operates silently and is EPA and CARB compliant. So this makes the bike very environmentally friendly. No word on pricing or availability but you can check out the web page for more information. https://www.revopower.com/
The Wheel is driven by a series of sprockets & chains which drive the engine
(and the wheel) around a fixed axle
20 mph (32 kph) over flat terrain; normal bicycle brakes are sufficient to
stop it
Standard two-stroke fuel (a mixture of normal gasoline and oil)
Approximately 200 miles (320 km) per gallon
Less than 15 pounds (5 kg); 12 pounds net of additional weight once the
original wheel is removed
Less than 65 dB at a distance of 7.5 m; very quiet operation
Extremely low; using the latest technology, it meets EPA and CARB regulations;
The Wheel stops when you stop, eliminating idling and emissions caused by idling
Automatically engages when engine is running
Single user interface of throttle and starter; User must peddle to start the motor;
no idling possible

Stumble It!