In Hawaii a motorized bicycle is classed as a moped as long as the engine is 50cc or less.
You must have a valid drivers license to ride a motorized bicycle in Hawaii. You do not not require a special license or insurance. You must be over 15 years of age.
You are not required to register a motorized bicycle in Hawaii so long as:
- The engine is less than 50cc.
- It is not faster than 30mph on flat ground.
- It has an automatic transmission