Hello my bike started to make some clicking/creaking noise with some tactile feel to it a couple of days ago. It's mostly when I apply pressure to the pedals so I thought (and hoped) there might be some problems with the bearings in the pedals... But I can also feel this "click or bump" when just moving the pedals back and fourth. Today while I was inspecting it more closely I could feel a slight bump when turning the pedals backwards. The bump is always in the same position (20 clock at left pedal) Is it the blue gear, clutch thing? Help plz