I had 90/10's (Avon Gripsters) on my KLR and it would hang just fine as hard as you want to go on pavement and they do pretty well in the dirt and mud. The D606 I have on there now does great off-road and was surprisingly capable on the pavement! The first shot is with Gripsters and the second is with the D606 rear with a Gripster on the front at the Gap. The last is with the D606 in the mud. Don't blame the tire. Poor choice of ruts!

http://img.photobucket.com/albums/v2...t/leaning1.jpg
http://img.photobucket.com/albums/v2...zeefoto2sm.jpg
http://img.photobucket.com/albums/v2...uff/stuck2.jpg
Oh, I had gear on but, had to take it off during the extraction or die from heat-exhaustion!