Hello guys , ever since I got my bike it make noise when I hit a pothole on the street , the chain touches the inner chain guard that covers the swingarm. I tried to take out the slack but again I can hear it . Even though my measurements are 27mm ( manual says 20-30) it's seems to tight and I'm afraid to get it tighter. I read here about the tighter point and the looser point. Can someone please explain me how can I find the perfect point to take the measurement? I forgot to mention I always take measure when the bike is cold. Is better to take the measurement when the chain is hot ? Thank you in advance.