I have a couple of lower fork legs and don't know from which year they are.

I know they are for 35mm tubes but they seem to measure 57mm on the upper end where the fork stabilizer would clamp. My 79 forks only measure 56mm there. I faintly remember that Honda changed something when they put air into the 1980 forks. Could someone with a stock 1980 fork please confirm this for me? What do they measure on the outside at the large diameter where the fork seals sit, where the leg has the grooves
