This was before the swearing began.
I took out the cables and tried taping the loom to a cable outer and tried feeding through from the front and from the back. Whatever I did, it always got stuck near the rear brake. If you get your arm in you can't quite reach what the snag is but if you tap a screwdriver around you can tell that there's probably only a 2cm gap to get it through. Suffice to say, the loom "knots" where the cables join together were way bigger than 2cms.
Are all Vespa frames the same
