is the small preload adjuster about the size of a tire valve cover? If it is undo all the way and you will see the valve. Yes the 16 has skinner forks than the later models. As usual I am at work on the mine site so i can duck out and measure mine up, but 37 sounds about right. I'll check what photos I have on my laptop to see if I can find any to help.

Cheers,