[Johnp]

Originally Posted by humanbeing

Stock as some Honda in Latin America https://partsdb.info/autopart/mannfilter/c1425 which not easy to find

Thanks for the pointer. This helped me narrow things down. It looks like the Hawk uses the same filter as the Honda XR125 / NXR 125 / NXR 150. But I can't find a filter anywhere for them.

We might all be forced to either use the lawnmower air filters, or swap out to one of these things.

Oh, and since I just noticed you can't really read my dimensions well, here is the full size version of my little sketch.