I had Gobis on mine and loved 'em. Very watertight and I just like the way they look. They are quite wide, but I don't know how it's detrimental unless you are riding single track or splitting lanes.
2012 Triumph Scrambler 900
KTM 950 Adventure, Buell 1125R, Ducati ST4S, BMW R100/7 (x2), Triumph T140E, Suzuki GS1100G, Yamaha SR500, Honda CB750K, and a bunch of dirt bikes...