I think 7" wide would be too small, some times I think I would like a bit larger windshield than the one I have on my S50. Most of the time it is perfect though.
For you S50 riders a tip. Be sure to check your front brake pads, mine were worn paper thin at 10K miles. Lost my squeal in the process, local dealer doesn't even stock the original equipment pads, I went with EBC from the dealer. Be sure to use a quality caliper lub on the pins, about a 30 minute job to change the pads.
Old codger