I am working on an 1987 Fuji Palisade and would like to upgrade the seatpost on it to have finer adjustment on it. Could any of you that have a lot more experience with Fuji bikes point me in the right direction of where I could find the seat post diameter? Is it 26.6mm or 26.8mm? The catalog on VeloBase gives the length 220mm but not the diameter. Your help would be much appreciated. Thank you.