G'Day roadcruiser, I think they consider the scoots to be an around town form of transport and so don't consider high beam to be nessecary, but, I want it and was lucky enough to be able to get it quite easily. It is not so much a different harness, just 3 wires to go with the switch to plug into the existing harness. On ebay there is a person in England wrecking a zx50 that has the dimmer switch, I think the seller's name is Ravenscraig. Fiddling with these scooters is good therapy.