Theoretically it'll fit the Zip too, but IIRC it fouls the airbox, should you have one. Obviously, it also fits the Gilera ICE too.
If your talking about the rear mudguard that bolts onto the crankcase then, the new shape runners and nrg powers have them.
the brackets fits all the piaggio engines as they do all cases the same , so it will fit on sr, ice, tph, nrg, runner, skipper, etc
you can buy one for an aerox if your on about the bracket that bolts onto your casing and holds your number plate behind the back wheel