Replacement Chain

[Phenix_Rider]

Well, my stock chain has nearly 16,500 miles on it. It's starting to have tight and loose spots and making a small clunk on takeoff. IIRC, the swingarm sticker says 9k-19k miles, so it's due for replacement. So what's a good, reliable chain that will get at least the same mileage? The stock 520 is $145. I'll stick with 520 because the sprockets still look great (they are steel after all).

Did a quick kneedraggers search, and so far, I've found:
RK X-ring, 520, 120 link; $94
DID ER; $132
DID VM; $105
EK SRX X-ring; $65
Regina O-ring; $120
Regina X-ring $145
EK SS natural; $95

I don't need anything super light, and don't want fruity colors. Probably get the RK chain tool to make the job easier.