Originally Posted by
Sixty Fiver
It provides maximum braking power when you mount the brake to the stiffest part of the frame... remember that these pre-date linear pull and disc brakes.
My buddy's mid 2000's Trek 4500 would flex the seat stays outward enough to notice without looking closely for it. I didn't think aluminum would be that flexible, but I was proven wrong, lol. I just checked my Super Sport single speed with "epicenter" seat stays. No such issue, at all. My late 90's Haro Escape? Only enough to notice, no more.,,,,BD