DiD ZVM2!! It's more of a street oriented chain (as compares to the ERV3) but she's strong. Gomes in grey(natural finish) or gold. I have the natural finish one on my SS right now in 520. I also run the same chain on my 749S track bike, just in 525.
FWIW, DiD referrs to thier natural, grey, metallic colored chains as black...believe it or not.