Originally Posted by
fietsbob
They in the end are not important, because the mid race need for fast wheel changes and having the adjustment pre set so the wheel is centered as the team mechanic
replaces your punctured race wheel, is gone.
Originally Posted by
FBinNY
Well, doesn't the convenience of being able to reliably replace the wheel correctly centered without fussing count for something. One mans need for speed is anothers need for ease.
I think what fietsbob meant is that since modern race bikes exclusively use vertical dropouts, there's no need for these adjusters anymore. Curiously, some early semi-vertical dropouts retained these adjusters for some reason:
