I have a nother Pinarello Montello and the dropouts are marked "Campagnolo"This Montell the dropouts are marked"Pinarello"Could they be different size?I put a Shimano 600 on the other with no problems.
Originally Posted by
FBinNY
Campagnolo derailleurs and hangers used a 10x26tpi thread until roughly 10 years ago. That can make a Shimano 10x1 derailleur bolt get a bit tight about half way in. Folks have been cheating these is forever, so it won't be a problem unless you make a habit of switching back and forth between 10x1 and 10x26 bolts.