I have an NSR2 and NSR4.
The new powder coat is really good compared to the original. The newer racks have a textured powder coat whereas the older racks have a smooth gloss powder coat.
My NSR2 was bought used and had a lot of powder coat that flaked off and surface rust. I just disassembled the rack and used black gloss Tremclad on the whole thing after sanding the rust off and scuffing up the good powder coat. BINGO: a rack that looks brand new.
As a tip to any NSR owner, if you want to keep the bars that the tires rest on from scuffing and eventually rusting, wrap the bar in hockey tape. It gives a clean appearance and does not wear off or scratch.
"If everything seems in control, you're not going fast enough."