Originally Posted by Bob S.
Isn't there a slight variable in the "length" of the fork? Specifically, the stright line distance from where the fork seats in the head set & the axle center line. A difference in this length will slightly raise or lower the head tube & therefore change the rake. Correct? Or, have I have too many cups of coffe today? Bob
True. But road forks don't vary much in length. A few quick calculations show that it takes a fork about 15mm longer to slacken the head angle by 1 degree. Fork length is a much bigger issue for MTBs where they can vary by over 50mm, especially rigid forks.