Jon, if my eyes don't deceive me, the two bottom right plates (on your photo) each seem to have one less notched tab than the other four plates of same inside diameter?
Maybe they can be the Type 2 plates Pleiades is talking about?

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2014 XT660Z - Barrett pipe, DNA stage1.5, Barkbuster hand guards and handlebars, Pivot pegs, Teknik suspension, Guard-it engine protector combo, B&B rear rack, Trax topbox.