Was up fella's!! So I need some help, I received my KOR T-Rock +3 swinger and I have all the necessary parts to install. My concern is I ordered two different chains, Renthal 520 (non-oring) and a Primary Gold X-ring. I have a race on Sunday (last one for the season) and would like some input on which chain would be better. The race is going to be an hour and a half enduro with a MX track combined with a XC and obstacle course. Any suggestions??:-/