So, the MOT time comes around again, and I go over the ER5, checking things as best I can and move on to the lights. All lights work, front headlamp might need some height adjustment, indicators blink in a satisying manner. Pull on the front brake lever and the brake light works, press the rear brake and nothing. How does the brake light turn on, when the rear brake is applied? I've had the footrest hangar/brake lever assemby off, I can't see any wires at all in the vicinity, and it still won't come on when the lever is pressed. There's no obvious sign that anything is missing. Does it even exist? TIA.