Quoth Neil Foddering:
>7/8" is the usual pre-war British bar diameter, often with a 15/16" ferrule
Yes, though I wouldn't define this as a "pre-war" issue. Rather, it's a materials issue:
*British _steel_ bars are generally 7/8" (22.2 mm) with 15/16" (23.8 mm) centres.
*British _aluminium_ bars are generally 15/16" (23.8 mm) with 1" (25.4 mm) centres.
This applies regardless of the shape/bend of the bars.
Sheldon "Hiduminium" Brown
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