Hello - I have always had my bike serviced regularly, thus never minding to check the chain tension for correct tension.
Now I want to care for it myself, and I want to understand its limits.
Manual says correct tension is 20-30 mm slack measured at the middle of the chain when the bike is on the side stand.
My chain slack is now 40 mm, and from my eyes to tell, this is the same tension level as when I was used to get my bike back from service. When I Summarise google results about the subject, I get that a chain should better be on the loose side than on the tight side as a tight chain will cause more wear. I read that better 30-40 mm on the DL1000 than 20-30 mm indicating that the 20 mm in the manual is incorrectly too tight.
Should I leave the tension on 40 mm or tighten it to say 30 mm? Or 25 mm?
I can guess that if the chain gets too loose, it will wear more on the sliding rubber on the chain guard and in worst case, it will slide off the sprockets and naturally cause serious damage. At which tension are we talking here? 80 mm? Because some bikes like off road bikes are suggested a slack of 70 mm
My bike is often loaded with a lot of weight.