Sooooo, this is a weird one. I'm very new to street bikes, I only have 2550 miles on my GSX-S750 and today I suddenly became aware of a pretty strong high frequency vibration (Buzz) from the engine. I rode 90 miles one way and the bike felt just like it always does. Then I changed out the handlebars for Renthal Fatbars Street Low, tightened my chain (1 inch of play on rear stand) and that's it. I just got new riding boots and when I got on the highway and past through about 5K RPM I noticed a buzz in the pegs and thought it was the soles of my new boots. as I got up to 6K RPM it turned into a pretty good buzz. I rotated my heel to touch the engine and could really feel it, pretty strong vibe. The bars have a tiny bit of vibes but nothing bad. My mirrors are really clear and it seems to be from the engine back. Is this something I should be worried about? It's the first time I got off of my bike and felt like I'm vibrating still, sort of weird.