Does the Atom require a power supply? 10 March 2021 05:51 Updated Yes. The Atom requires a mains power adapter when in use, a 12v, 2A DC power supply is supplied with the bike. Related articles How do I change the saddle on the Atom? Can I change the pedals on the Wattbike Atom? What are the dimensions of the Atom? Getting Started with your Wattbike Atom - Atom User Guide How much maintenance does the Atom require? Comments 0 comments Article is closed for comments.