Does the Diamondback Fitness 910ic need to be plugged in?

No, the Diamondback Fitness 910ic is a self generated unit. What this means is all you need to do is begin to pedal and it will power on. 

We do provide a power adapter for the unit but this is maintenance purposes. If the bike goes for a period of time of not being used, you may need plug the unit in overnight to give it a charge. 

DO NOT ride the 910ic when it is plugged in. This can send to much power to the unit and fry some of the electronics causing damage.