So my commuter bike started making a racket recently, and when I went to inspect it, it appears the rear derailleur (suntour accushift plus) is actually sitting on the two lowest cogs while riding, causing it to jump up and down and make a whole lot of really annoying noise. It didn't used to do this, so something has changed recently.
I figured it would be a simple b-tension adjustment, but upon closer inspection, it doesn't actually appear to have a b-tension adjustment screw anywhere. Does anyone know if there's any equivalent adjustment I can make, or is it broken for good? I've been considering upgrading the bike to 105's anyway, so maybe this is kid of a sign.