I get mine from jbm chains on ebay, they sell master links, half links, and whole chain setups that sre a lot better quality and stronger than the stock kit chains, they also look a lot better since you can get them in standard black, nickel plated, or gold colored for that perfect finishing touch. I'm using a nickel plated 415H chain on my newest build and that chain is far more heavy duty than the kit chain as well as looking a lot better. I went with a half link instead of the typical master link so I could eliminate the need for the tensioner and they send everything quickly too. Their chains, master links, and half links are the kmc brand so they're definitely high quality and reasonably priced.