I crossing at a cross junction, so I literally only had a few seconds to cross because the cars beside me would turn right. As I pushed towards the curb I heard a loud bang.
Anyway after that incident the rear derailleur now bouncing up and down while I pedal in the lowest gear. Only the easiest gear though. Otherwise it's shifting up and down the cassette fine.
what did I do?
It's a shimano tourney on a this bike https://www.cyclesurgery.com/p/orbea-carpe-40-2018-Q3414421.html?colour=122
I know at least one of the springs is intact because when I push the derailleur inwards, it springs back immediately after I let go.
with the rear wheel out, I can feel there is tension on the cage wheni pull on it