Go to your key items, then select your bike, then set to register, that way every time you press select you'll be on the bike and then you can just ride.
Depending where you live, the motor bike, time and if you are liscenced.
no you can not ride with 3 persons on one bike ....
No
It depends on the distance travelled, If the person had travelled 120 miles the it would be 2 hours. Time = Distance/Speed
The average time of a ride :)
Swim, fly kites, bike ride, babysit, etc...
Ride hi bike and hang out with friends.
Preferably only one at a time.
Depends on how often you ride the bike. If you ride it weekly then I wouldn't worry about it. But if their are periods of time when the bike is not ridden, it may be a wise purchase.
Burning calories on an exercise bike can be achieved with longer use and takes more time because when you ride a real bike you have to push up hills and various conditions throughout where you ride.
No it is not legal to ride a mini dirt bike on sidewalks in New Jersey. In some states it is legal to ride mini dirt bikes on sidewalks.