I usually set the clamps just a little larger than the rim. Then it's just a push while clamping. Voila!

I know this is a little late but if your run that nut down on the bead breaker air cylinder shaft you'd gain another two inches or so of bead breaking ability.

Sweet tire changer. I don’t think I could justify that. I’ve never seen a tire split like that. Hopefully some warranty there.

Wouldn’t you just loosen those Allen set screws on the duckbill instead of pounding it on!  ????

how big of a compressor do you need to run that machine?

Is motorcycle duck head and atv duck head the same?

You needed to back the Allen's out some on the duck head

Is their a date of manufacture on the tire? You could start your Tire business?

umm, back the set screws out? naw, just use a mallet! You can lead a Neanderthal to a tire machine, but you can't make him think.