I just put a new dunlop Desert AT on the rear of my 2002 wr426. (120x100x18) Now the bike feels really unglued on the fast straight sections.. It is almost like the rear end rolls (??) around when you drop into a turn. My previous tire was a K695 (100x100x18) I am not quite sure what to think. Is this tire too heavy and causing the suspension to float over bumps? Or maybe the taller side walls are to blame.. (Even though they are rock hard) Right now I am running 14.5psi in the rear, but it feels considerably harder than the last tire. Has anyone ran this tire before? Did you run lower psi? I am running mainly dry hard packed single track near my house at the moment, with some loose rock, and some hard rock surfaces Help!!??