I use the Izumi super greatest chain. Yes, $80. But they last years and I never wonder if it's going to break on me. It's noisy because it is stiff and accurate. There is very little slop in the link bushings.
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Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --
the tiniest sprinter