Beautiful bike!! Get some gold anodized components and call it Goldfinger. FYI yours is a very, very early one so hang onto it. In addition to no cable guides along the top tube, yours has the very rare long rear drops with the triangle cut-out instead of the circle. Some collectors get hot about this for some reason. Definitely a 25mm post. +1 check the threading, ALAN's came in every threading under the sun except Swiss I think. Well done.