Rare Aero stem for 1990 road bike by the Italian brand Cyclo Man, used but in good condition as you can see from the photos…. the measurements are as follows:
~clamp size 25.8 mm.
~stem size 90 mm.
~quill size 22.2 mm.
This stem was paired with a Cyclo Man road handlebar with a handlebar clamp size of 26 mm.