I will throw some pure conjecture on this thread. Where I work I am the only one with a Ninja 250 (no ninja 300s that I have seen), while there are 3 CBR 250s It would be interesting to see the 2011, 2012, and 2013 sales numbers for the bikes.
Also remember that there is a huge overseas market for the small displacement bikes so truthfully the US is probably a relatively small market for both Kawasaki and Honda 250/300
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