A:AnswerRefer to the specifications listed in the product description - the range is up to 18 miles which probably equates to approximately 2-4 hours, depending upon the amount of throttle you're utilizing & average speed you're carrying on any particular ride.
A:AnswerYou secure this scooter just as you would any other small scpoter and/or, bicycle - by using a quality bicycle lock or similar locking device used to secure a bike. Ensure that you aren't a "Cheap Charlie" when deciding on your lock as any thief will have the required cutters to steal your ride in mere seconds.
A:AnswerIf you look at the reviews a 69 yr old man is using it to walk his dog. So i would say yes as long as the adult is less than 220 # max capacity. It also states that the minimum age should be over 14, so not for little kids. I am 79 years old and i am considering it for me as i also have a bad back and cannot walk to my mailbox and back and am currently using my car.