195/60 is beefy. 195/50 isn't really as much. Difference of almost 20 mm in height ( 19.5 mm to be exact ). or you can say almost an inch.
60% (of tread width) x 195 mm ( tread width ) = 117 mm ( side wall height )
50% (of tread width) x 195 mm ( tread width ) = 97.5 mm ( side wall height )
60% (of tread width) x185 mm ( tread width ) = 111 mm ( side wall height )
John, since you are running 14's, you shouldn't have a problem. Try searching in Google for "Speed Converter " to see what you will be off by more or less if anything. Or here you go....
http://www.net-comber.com/tirecalc.html
GSR I believe is 195/55-15. Enter the second set into the second area. BY the calculation you will be off by about half a MPH. Not a lot to cry about. Also gives you circumfrence and revolutions. You should be ok unless the brakes don't clear the 14 inch wheels.
If you meant 185/60 14's then you will have a 5.5 mph difference on your speedo.