According to New Hampshire Law a motorized bicycle is classified as a moped. The fit within the definition of a moped your bicycle:
- must have an engine of 50cc or less.
- cannot exceed 30mph on flat ground.
- cannot shift gears.
- cannot exceed 2hp.
To ride a motorized bicycle in New Hampshire you will need a drivers license or a moped license.
You must register your motorized bicycle to ride it on the road in New Hampshire.