Originally Posted by
well biked
21.15mm quill stems, aka .833", equals 5/6." 22.2mm quill stems, aka 7/8", are the most common size for one inch forks.
21.15mm equals 5/6 inch. 22.2mm equals 7/8 inch.
Those are the actual measurements. But a 22.2 mm stem is referred to as a 1" quill. A 25.4 is considered a 1 1/8' quill and so forth. My older Takara was stamped 7/8" and then right underneath stamped 21.1 mm.
EDIT: Misread what you're were actually saying. That's funny. I wonder why my stem is stamped with both. Maybe 7/8" refers to something else?