Hi Darius,
Yeh it's NOS OEM. The tire/chain info decal is available from the guy Vince gave you the link to.
I have seen some mint 84r's that don't have that particular decal fitted and others that do, I have a mint original 84r fender that has all original decals attached and that particular decal is present.
The tank decals were different between 83 & 84 too, the wing on the 84 tank has a more orange colour where the 83 is yellow. All repro decals are yellow, even some of the high $$$ restored 84r's I have seen have the incorrect tank decals.