I am selling my old totalled F4i to a friend and we are adding 20 to 30 horsepower and quite a bit of extras including inverted shocks and radial mount brake calipers from a CBR600RR. Hell even 40mm throttle bodies from the '05-'06 CBR600RR ('07-'09 won't work because it has a servo motor controlled idle valve) and when I get some Marchesini wheels for my '08 CBR600RR I am selling my old wheels to that guy. The Enkei wheels on my 600RR are a LOT lighter than the stock F4i wheels. It'll be fun!