Originally Posted by
repechage
I forgot to mention a single spacer is useful, between the headset and the stem...at least 5mm, just ask those Trek mechanics after the P.R. fiasco, bar detachment.
i've heard that there should be at least a 5mm spacer
above the stem for integrity purposes, but why does one need a 5mm spacer between the headset and stem?
does proximity of the stem to the headset induce stresses that can eventually lead to steerer failure? thanks for the interesting feedback!