One misconception is there about chains: Chains should be as tight as possible... Plz don't be under the impression that tighter chains work better.
Actual thing is that only the portion of the chain in tension is carrying the load the slack portion has no role to play except to guide the chain from sprocket to sprocket. if itss too too loose or misaligned it will not be guided properly and come out.
So keeping chains tight doesn't help in anything but reduce the lag and noise when we switch from drive to coast and vice-versa. But they are not big problems... so a tip, when you are unsure leave the chains a little loose.
Yup busy bee time in my life...

Oiling and lubrication only cover for environmental and frictional damage, they do not protect from shocks.
1 factor is the tightness in chains, And 80 percentage of mechanics have done my bike wrongly... i always have got it redone after service.
There are other factors like runout and stuff but i am not mentioning it as they come under defective quality, and we can not do anything about them.


. I've ridden some bumpy tours in monsoons where our terrific Indian roads are exposed
. I've had these tours alone (single rider) on bike. And the chain wasn't tight AFAIK. God knows the error here... 

Comment