So after doing a quick bit of looking on SW Motech's website, the Pro (magnetic) tank ring for the 1300 is a different part number even though the fuel cap looks identical to the 1250/1200. Looking at the mounting instructions though, the instructions cover all 3 part numbers, the 1200/1250 and the new 1300 so I'm pretty sure it'll transfer straight over if you have one. I can't confirm (yet) though but I'm pretty certain.
I imagine it'll be the same for other tank rings as well.
I imagine it'll be the same for other tank rings as well.