I currently have a 2x10 setup with shimano deore.
i know that i must use the larger cog while on the rear the chain is near the smallest ,at the same time on other bikes i can use the combination of the smallest front cog and smallest rear cog even if is not correct. In that case i can still pedaling whitout noticing that the cogs combinations is not right , on my bike the chain seems working in a strange way amd sometimes jump (in the worst case scenario if i try to climb with the wrong combinations the chain keep jumping and the bike is not pedalable at all).
I noticed that the derailleur seems in a wrong positions , compared to other bikes with the same setup.
This is the derailleur on my bike , notice that the chain is touching himself at the point of the bigger pulley.
this other image has been taked from a random website , as you can see the derailleur is almost on the same position but the chain seems to be in a better positions.
Do you think i must adjust my derailleur (maybe adding more tension to the hanger's bolt forcing it to keep the chain more in tension) or i must shorten the chain a bit?
(or i there is another solution please write it down)
Sorry for my bad eng