Hello
They are stock forks but they are very rotten, big chunks flaked off about 4mm deep, they are too corroded to use.
I have a replacement pair of blue 1992 forks witch I have polished silver and I need to make a custom axle as the 1992 forks have a bigger hole where the axle clamps, and the 1992 axle doesn't work with the 1990 hub bearings.
other option is to remove the aluminum parts off the steel stanchions and swap them over, I understand they are very hard to remove.