Hi,
the Honda CT range,from 1962 or there abouts was just about the first mass produced Japanese off road motor cycle ,therefore it should probably have as
much place in history as the DT1
The posties frame and engine cases are the same as they were before 1969, the front forks of the 2000 on models changed to 1970's style of putting the springs on the inside of the fork tubes, visually the head and barrel look like they did when the first OHC engine came out in the sixties it is possible to tell them apart but not from 5 meters,
At worst it would be an "evo bike "( air cooled ,drum brake , none linkage suspension,) there fore eligible,
I was using a different model pre 70 honda forks on mine in pre 70, and also raced this bike in pre 70 at Nepean,
I entered mine as 1969 K1B replica, about as original as a brand new Metise replica
I suggest you enter pre70- and classic 125 and turn up a Clarence,
the only person that need's to get it is the rider.( It's got 2 wheels and an engine, and because you can)
I started racing vintage on the postie and now have five "proper" vintage bikes, lets not "see "the forest for the trees
Noel