Previous owner took directly off a 1981 CB125 1981 Honda which is model code 383, same as 1976-1982. So it should fit all of those years. It is adjustable from 28.2 mm across to 35mm if turned out. Given the sliding mount, the length can safely adjust from 60mm to 67mm It has two different side mounting holes for additional mounting flexibility.
Excellent condition High Chrome with only the most minor of rust at a couple of welds. It is missing one of the rubber strips.. One of the adjusting bolts has been replaced