Originally Posted by
Grand Bois
What kind of adapter will allow you to use a modern stem on a French fork?
It just takes about 20 minutes to hand sand a 22.2 mm stem down to 22 mm. If you do it right, the modification is completely invisible.
This
I had one custom turned for my Lejeune tandem. It was 21mm. I guess the steerer is heavier. Also got a regular one just for grins. Nicely done.