Seems like the rotor which was replaced last year (at Vespa Brooklyn) maybe warped.What makes me say that is that I was hearing a noise that felt like the rear wheel was touching something. So while going downhill on one of the streets I shut the engine off and let it just roll, the noise came at regular intervals like the rotor was touching the brake pads at a certain part of the rotor.
Not sure it could be anything else, feels like when you have a bicycle wheel out of balance and the rim touches the brake pads. Generally in that situation you can true the wheel tightening/loosening the spokes around where it is touching.
Seems to me I don't have any options besides replacing the rotor. Could I use a hammer or a plier and pull the rotor to kinda true it?
If I have to replace the rotor then what all else should I take care of, the brake pads are fine. I could replace the gear oil since Ill have to get the wheel out.
Any guidance will be greatly appreciated.