I had to add two links to my ss chain to allow the axel to move rearward enough to allow for knobbie tires and fenders in preparation for winter. Chain tension was perfect before but is now allowing about 1.5 inches of pull down slack even when the axel is in the rear-most position allowed by the drop out.
I was thinking I would have to get a chain tensioner when planning that move but I have ridden about 60 miles on the loose chain without it jumping. So am I still at risk of it jumping? Do I have other problems to worry about now, like premature wear? I am just trying to get a feel for my level of risk by running a slack chain.