Im kind of worried about takeing my 650L too high in rpm's. Only mod I have is I have droped one tooth on the front sprocket from stock. What is the defenition of reving out? I cruse nicely at 70 to 75 mph. but after that it gets pretty buzzy. Is there a pont where the engine will top/rev out safely? Or am I pushing my luck? Remember Im an ex V-twin guy. So this is a little dirent animal for me.