I have bought many lengths of bulk chain on ebay, mostly gold zinc coated. Haven't had a problem yet. Just keep it clean and lube it regularly. I even use it on my yz through mud, streams, snow (salt). O and X ring chains seem to keep dirt in. My buddy lives by them and we only ride off road together, he replaces his chain once a season, I'm still on one from 4 seasons ago. Previously people were talking about strength of chains on this forum and I believe the final outcome was that good old fashion zinc coated or ss chains were way stronger than x or o ring. I'm more worried about my Buell's "lifetime" Belt.
