Which Chain? (Chains / Size / Width / Wear)

a Z510HX costs 1/3 of it. so my guess is, that it doesn't outlast it 3 times.

i haz been using a z510 for years on mtb and bmx then recently splashed out on the z510hx, had since january, still think it is not worn enough to warrent new one though may check that later and report back.