28.6 quill is 1 1/4" (as in it fits inside an 1 1/4 steerer tube. the 28.6 is actually a measurement of 1 1/8, but that's not the bit that is measured. 1" would be a 22.2 quill, 1 1/8" would be a 25.4 quill and 1 1/4" is 28.6 quill.)
Which is a shame as if it was the middle size, I'd love to have had it...
28.6 quill is 1 1/4" (as in it fits inside an 1 1/4 steerer tube. the 28.6 is actually a measurement of 1 1/8, but that's not the bit that is measured. 1" would be a 22.2 quill, 1 1/8" would be a 25.4 quill and 1 1/4" is 28.6 quill.)
Which is a shame as if it was the middle size, I'd love to have had it...
Si F