The Copenhagen Wheel

Originally Posted by MIT

Inside the hub, we have arranged a motor,
3-speed internal hub gear, batteries, a torque sensor, GPRS and a sensor kit that
monitors CO, NOx, noise (db), relative humidity and temperature. In the future,
you will be able to spec out your wheel according to your riding habits and needs.

Controlled through your smart phone, the Copenhagen Wheel becomes
a natural extension of your everyday life. You can use your phone to unlock and
lock your bike, change gears and select how much the motor assists you.
As you cycle, the wheel’s sensing unit is also capturing your effort level and
information about your surroundings, including road conditions, carbon monoxide,
NOx, noise, ambient temperature and relative humidity. Access this data
through your phone or the web and use it to plan healthier bike routes,
to achieve your exercise goals or to meet up with friends on the go.
You can also share your data with friends, or with your city...