Kawasaki’s changes to the model designations of its KLX family of dirt bikes give us a chance to revisit old favorites—in this case, the 2021 Kawasaki KLX140R F. Previously known as the KLX140G, the renaming features an R after the number for all the KLXes. That means we have the KLX110R, KLX140R, KLX230R, and KLX300R. In the case of all but the flagship KLX300R, there are variants, and they get a space followed by an extra single-letter designation.
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