You are reading a single comment by @hippy and its replies.
Click here to read the full conversation.
-
I don't recall which one I was playing with. It seemed to have a wider range of movement to what I'd expect it to have but its been so long since I played with that derailler I have no idea.
hippy-
The bushes or bearings will wear, but I'd expect the wheels themselves to wear out before they do.
Tacx wheels with stainless steel bearings are <£15 and regular bearings <£10.
Scilly.Suffolk
The upper wheel (guide pulley) should have some slack in order to keep the chain aligned with the sprocket.
The lower wheel (tension pulley) shouldn't.