Can you please take a picture of the rear brake arm and the position of the cable like i have taken.
To cut a long story short, i recently replaced my rear brake cable after the threaded end sheared off while i was adjusting it.
Upon picking up and fitting the new one supplied by the lovely people at Vespa all is not well.
Now i have no rear brakes I am sure they have somehow given me the wrong cable as im sure it is too long. The arm is all the way to the back to the corrugated rubber bit and still only just bites the wheel.
Many thanks for helping out if you can 8)