She actually floats along nice and smooth at 150KPH (150KPH=90MPH),no prob,thats usually what I cruise at even with the House Mouse and fully loaded.Must be upwards of 1200 pounds. The six speed and bigger motor help out alot,and I still get like 40MPG.
I love to hear my tunes aswell. Alpine marine grade head unit,big Alpineamp hidden in the front fairing and four 6" Blahpunkt speakers all wired to the stock handle bar controls. She's loud,clear but loud. The buddies all ride behind me so they can hear and rock out too.