Both are 26.8 mm. Strange enough, I have no interest these seat post. Wrong size. I was surprised when I came upon them. I already have a few in both 27.0 and 27.2 and also have the limited edition bent one.(cut and rewielded). Both are already spoken for.
Besides the seatpost, old-school syncros doesn't interest me.
The challenge for me was trying to get my hands on it.
Only other retro parts were, ringle seat post (spoken for and missing hardware). Shimano xt 1 1/4(nos), som shorty stems, compact chain ring set and standard chain ring set.