as mentioned above... the shifter can puncture the case in a crash. I took my lever off and welded a plate to it (about the size of 2 silver dollars). the side covers are thin.. get a good crash guard.
I like that epoxy in a stick. it's like a little log... cut off a piece & kneed it until its all one color.... 5 minutes later its hard as rock. I patched broken side covers a couple times with it (not on my DRZ, others)