I need to put off road tires on my TW. I currently have road tires and need to go up (straight up at times) a dirt & rock road that goes up a mountain. This is a actual town road hence the TW and not my quad but it has loose rocks and some slime along with leaves sticks and the usual. I am looking to mount a tire that will get me up the hill. If you have suggestions as to tires please let me know if they fit stock or need mod/fabrication to make it work. Thanks