nope not legal...you need at least one i believe, on the left side like this but dont quote me on that, you may actually need 2...i just see people all the time only have that one, and some old cars are setup the same FTR - i got stopped on my bike and they never mentioned my mirrors...i took it kinda like illegal tint, its not legal but its not a huge deal unless you find the right cop....if you do it, do it at your own risk...and be extra careful about your surroundings...sometimes it sucked not having mirrors, but most of the time i didnt even notice, just turned my head like i do anyways my biggest complain with bar ends is i kept breaking them off....bump into them in the garage wrong, get off the bike wrong and my bookbag would swing into them, etc lol but they were like $15 per set for ebay mirrors, so it wasnt too bad....nice aluminum mirrors...just after 3 sets in less than 6 months i said forget it lol