> HD: Like wise is it safe to and a stem from 22.2 to French
> 22.0
> HS: I was encouraged in this form of antiauthoritarian
> heresy by list members. It works. But light sanding around
> the stem is less likely to dull the upper part than sanding
> along the axis of the stem.
Before sanding the stem, remove the top nut from the headset and see if the stem will go into the head-tube without modification. I have, on occasion, worked on bikes with French threaded steering tubes which were reamed to 22.2mm by the manufacturer.
In those cases, I believed it better to slightly enlarge the inside diameter of the headset's lock nut.
Bon chance
Fred Rednor - Arlington, Virginia (USA)