There are lots of reports on this tire if you search the net, it's popular with supermoto riders. I have not run this tire personally, opting for the Pirelli Scorpion Trail. I did a lot of research though and posted in the afforementioned thread.
Rider coments I recall:
The tread is very shallow on the front tire to give it a stable grip on tar. It's only midly better for off pavement than regular tire. However it is a soft compound so grip also good for that reason, and due to the light front end of the versys expect decent wear - 3-5K miles. Buell Ulysus riders love this tire. It is the most aggressive tread to be found for the 120/70-17 size.
On the rear, again it's supermoto compound and unfortunately if you are aggressive at all or ride superslab it can go in as little as a couple of thousand miles. Some have reported less - like 1200-1500. And they are not cheap so it just gets ridiculous after you burn a couple.
Due to it's tread design some have said it is quite buzzy on tar, didn't like them at all.
Combo-ing up with a more durable rear is a good option - a rear tourance, anakee, conti attack trail, to name a few.
Distanzia - also supermoto compound, same issues as the Pirelli
Tourance - mount a rear on the front but handling suffers and requires a fender mod
Shinko - okay for off pavement and light going. Have known to come apart at high speed and high heat.
If I was looking for best offroad with satisfactory on road I would probably do the same as dejavu mentions, an MT60 front and Anakee2 on the rear. There are some complaints about straightline stability with the A2. Especially with weight at speed it can get a bit squirelly, but top of the heap for wet. A tourance will also work but they are reported to be not as good handling but longer wear. Tourances have been reported to go WAY long miles. Very popular for the super long distance riders.
The adventure type riders have tried and reported on all of these tires, so there's plenty of feedback out there on them.
All that said, I'm way happy with the scorp trails, with about a thousand miles on them, but I don't do much off pavement with my bike. The issue with dirt is not tires, the trails grip plenty good, it's the suspension. If it gets rough at all the bike will just beat you and itself to death. In fact, many have come to the conclusion, as I have, that any street tire with a little more tread than a full roady will work fine for groomed dirt. Unless you start modding the bike for offroad the tires are really kind of a none-issue. Supermoto riders will tell you the same thing - look how fast they go on a supermoto track with full-on road tires and 17" wheels!
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Last edited by CJBROWN; 05-31-2011 at 11:29 AM.