It would be possible to use it off road,but it will not work vary well and it will get torn up really quickly.
when you ride off road you will have to lay the bike over somtime or another and when you do you will break your turn signals and other things I dont mean to be rude im just giving advise
I dont know your budget but it would be possible to pick up a nice dirt bike for around $700 so you might be better off waiting around for a good deal
hope I helped