hello,
my name is mick. i'm looking to for ANY pre-1995 aussie helmets with any sort of adjustable retension located at the rear/base of the helmet (like a pigtail system, or a dial adjustment etc). i can pay between 100 and 200 dollars US per helmet. i think Netti might've made something along these lines, but there should be others too. if you think you have one, email me pics so i can ID it
thanks for your time
Mick