As to reaming a French steerer to 22.2 ,I thought they were the same OD ? What is the danger here other than incompetence? As for shims they were quite common as the original Ashtabula forks were 7/8 but later reduced to 13/16 (not a CPSC change but an earlier warranty one )
BOB FREITAS
just wondering in SAN LEANDRO, CA USA