hi guys, so i bought my first airhead, have wanted one for a long time so finally sold my guzzi and bought this. i didnt view it and bought it on pictures and a telephone call. so i thought i was buying a 1982 r80 but once home today it looks like the forks are from the 70`s and the rear drive is the same. i know it was police issue and i really liked the spoked wheels but can anyone shed light on why it has older style forks but brembro brakes and anything else. also do i buy parts for a 82 model or a late 70`s model ? v5 says 82 first reg.