What Tom said. In Texas without pedals, my bike would be considered a motorcycle, and need registration, licensing, insurance, the whole nine yards. With pedals, it's just considered a bicycle.
as is the case here in connecticut...but there are vendors that sell "highway pegs" that mount to your bike and fold up when not in use...
....I definitely recommend that you get ur bike pretty reliable before you remove tho or there will be a lot of walking lol