No. It is all really relative anyway. If the chain is dirty, clean it. If it is not dirty, don't. If it needs lube (in your opinion) lube it. Remember what works for me may not work for anyone else. I only have a little over 10k miles on my original chain and have adjusted it only once (about 4500mi. ago). I expect to get another 5k mi. out of it, at least.