i ditched my stock mirror asap!
at first i used a L&R ken sean folding mirrors
then went over to neduro's double take mirror.
which i love. i only have one on the left side and it often stays folded tucked away behind my screen/above the instruments when i'm in the rough stuff. i'll open it up when on a group ride in the dirt so i can see behind me or the pavemement. for those who use your dr as a dirtbike it's easy to quickly remove the who thing. i have the ball in the normal left hand mirror spot but first i have this screwed in to help even more isolate mirror vibes. http://www.klr650.com/MrVibIso.htm
and then the doubletake screwed into that. since i get additional height from this isolator i went with the short 1.75" arm vs the 3" arm
the kean seans did fold out of the way but not as tightly out of the way, as the double take plus the kean sean's need alot of readjusting (with a tricky system at that) to keep them from flopping down when in the up position. the double takes use the tried and true ram ball/arm system that looks down with a single lever. the only trick is you need to tighten it real good or the mirror will move (as the mirror ball is not rubber but some sort of polycarb/injected plastic). you just need to tighten it more than you would will a pure ram mount rubber ball to rubber ball system, but it does stay in place.