Found Fram CH6070 filters at Advance Auto from two different countries-of-origin (Korea and India), two different overall lengths--Korean product 0.16 cm longer than its Indian counterpart (boxes different sizes, also).
I bought one of each; put the longer one in my '07 KLR650 just as an experiment . . .
So far, so good; experiment won't be completed 'til both lengths are run through their service life and inspected.
I have images of calipered measurements, box printing, comparative views. Kinda dull, actually; don't show much more significant than my narrative above. May post 'em anyway, if I get awfully bored . . .
Don't think the difference in length critical to the KLR650 application, since each fits easily into the oil filter compartment. With reasonable oil change intervals, filters may not be entirely essential; Honda made jillions of small engines without disposable oil filters.
Still, I'd prefer a serviceable filter. When a filter chokes up, however, the bypass valve opens and . . . unfiltered oil is then circulated through the engine. Not the best thing in the world, but . . . no cataclysmic disaster, necessarily.
Adapting a "MYTHBUSTERS" persona (but I will NOT wear a ridiculous beret!), I must say: The legend, Fram manufactures and markets CH6070 oil filters in various lengths, is TRUE!