I don't, there could be anything I can't see on the non drive side shot we have. Little spring roller near the back. I hadn't looked real hard, I just got up, and was more focussed on trying to see the bolts at the back, I shoulda just turned up my screens brightness(on low for frail morning eyes), easier just to look dumb and ask.How do you think is it supposed to work with a Horstlink and without a chain tensioner?