Not sure on the exact years but that sounds about right. My rear wheel has a 94 date code and is an Enkei. When in doubt I check partzilla.com. The part numbers should be very close from year to year with the color code making the part numbers slightly different.
OK, now things are starting to gel for me.
Thanks for the added comments.
I did some fishing about in the EBC catalogue.
Going by that:
1-the VTR(1000F) (aka Firestorm internationally and Super Hawk in Nor' Am') used the same rotor as all the 900RRs did.
2-ditto re brake pad and therefore the brake pad and backing plate patterns are also common.
3-all 919s used the same brake pad and therefore brake pad and backing plate patterns as the VTRs & 900RRs.
4-the EBC data is suggestive that the rear calipers are common for VTRs, 900RRs and 919s. (as you were saying)
Next, allow that the 919 uses a larger OK rotor.
It's straightforward that the bracket would have to be different for the 919, in order to properly position the pads in the caliper on the larger rotor - regardless of whether the locating block was common or not.
Now I'm wondering if a 900RR bracket with the 919 caliper might all match up to a 900RR rotor on a 919.
If the VTR' and 900RR bracket P/Ns are common, then the answer is no.
But if they are different, maybe the 900RR bracket is a bolt on solution.
I was surprised to see the commonality of rear brake pad pattern across the VTRs, 900RRs and 919s.
My guess is that it's because it's the rear brake and not the front.
I say that on the basis of comparing the F4i front brakes to the 919s.
Their respective rotor ODs and sweep are the same, but their caliper pistoning and pad patterns are significantly different.