The only "approved" off-road tire for the TW200. Bridgestone does make a 80/20 street oriented tire in this oddball rear size for people that never or only very occasionally ride off road.

For a 50/50 tire, the TW34 is pretty versatile. It's quite durable on the road- mine had about 3000 miles and was barely showing any wear at all, and handles well on pavement. Holds a line through corners and stable at high(er) speeds- this is a bike that maxes out at 70 on a good day. The matching front tire, I can't say the same for. At the same mileage it was well past 50% gone, was quite noisy on the road, and absolutely worthless off road. Swapping to a 120 or 130- 18 dirt bike rear tire is a must if you plan to do anything more than very light off road riding.

Off road it's better than it's tight knobs would suggest. It's fat footprint allows you to run lower pressures than a traditional dirt bike tire, and the modest power means you don't really need to worry about spinning the bead or pinch flats. At road pressure (25psi or so), it's mediocre off road. Airing it down to about 5psi improves it substantially, and it would handle about 90% of off road terrain. Muddy or rough hill climbs, with lots of rocks and roots would find the limits of grip, as would sticky mud. Coupled with a good 80/20 or 90/10 tire on the front, it's a great little trail donkey. Unless it's muddy or wet, the bike runs out of power before it runs out of grip.