CBR 600RR vs. CBR 600F4, F4i
 

What is the difference between the CBR 600RR, and the CBR 600F4, F4i ????
(the pipes don't count) !! i really wanna know what the RR, F represent ?!?!
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RE: CBR 600RR vs. CBR 600F4, F4i
 

Easiet difference first: The F4 has a Carb, the F4i and rr are fuel injected. The F4i (newer model) and rr have a couple differences I can think of off the top of my head. The forks on the RR are inverted unlike the F4i's forks. The seats, obviously, are different. Since the debut of the rr, the f4i has become more of a sport touring model. Just like the F4 used to be the sport touring type model when the F4i first came out. The F4i is slightly heavier, something like 10 lbs. more. and of course the pipes.