Those look like a very good tool to have when needed. Just and FYI, I try to keep to where I can try to tackle most any job needed while motorcycle traveling. I have 2 of the 15" curved tire irons that will work similar to this tool but no where nearly as easy.
This method can take a lot of tries but take the small curved ends of both irons and stack the irons one above the other. Insert into a flat tire at the bead and pry the bars apart. flip the top bar when you can and keep working, it will break a bead but may take a long time with lots of "bites". Just keep inserting and prying the bead away from the rim. I've done it a couple times when changing out old tires just for practice.
On the other hand, there is hardly ever a need to break down a tire on the road unless you have another to replace it with. I do however think everyone should carry a gummy plug repair kit. If your plug tools don't have a handle drill holes in the plastic ends and use the other tool as a handle to help with reaming the tire and inserting the gummy plugs. I also carry some tire patch glue to coat the gummy plug for easier insertion.
