Joined: Mar 2012
Posts: 1,556
Likes: 453
From: Niagara Region, Canada
Bikes: 1970s Alex Singer, 1960s Peugeot PX 10, 1960s Bertin C37, 1973 Carre Bertin C 37, 1972 Carlton Kermesse, 1981 Peugeot PX 14 Super Competition
CV-6-
I have exactly that post on a newly restored Bertin C 37 and it is equipped with a 1970s Brooks Professional. I weigh 185 lbs and have no slippage problem. The seat rails are a tight fit but the whole thing snugged down and stayed that way. Is there sufficient friction between the riveted on cradle halves and the post itself? Perhaps roughing up with coarse sandpaper? RE: Ideale 2000, 2001, 2003 etc. Don't. If you fit a Pro and are comfortable, you will experience severe discomfort with the plastic Ideale variants. The leather ones should be fine as I have done both. Just say no to plastic.