something other than a fly windshield will give you more mileage.one that has a nice curve to it and that flips up at the top...However if you get one with out the flip it will give you more fresh air.Even Harley Davidson proved a windscreen will give you more MPG and of coarse the ridiabilty at higher speeds will increase 15-20mph.I've run the Triumph fly screen & the Dart Fly screen from England---it was a lot better than the Triumph...but it is not the answer...I need to look harder on the net...I had the right one but forgot where it was...if I find it..I'll post it...All said and done--the wind package cleans up the width of a persons body about the size of an oversized basket ball--in otherwords--your chest & gut...
I will keep your informed...
Kenny