T-Mar You are correct about the DS Expert # I forgot the " A" ,here is the corrected #N7A6468. It is all 105. The LeMans is not all 105 as I stated it has Sport LX derailers.It does have a true investment cast fork not welded as on the Ironman. Also the Sport DLX was purchased in 1986. The lady had the receipt but forgot to give it to me. The # on the Sport had two more very faint number on it. It could be a 82 or a 92. Here is what it could be F6108482 or F6108492. Has anyone seen this investment cast fork on a LeMans before?? Thanks for all your hard work on the Centurion bikes
Ed