After doing a bit of looking and reading Sheldon Brown's description of older Raleigh's, I am thinking the dropouts aren't pinched but meant to accept a smaller diameter axle. This it seems would certainly limit availability of what I can use but I'm not too excited about the idea of spreading the dropouts. BTW the horizontal spread is 130 mm and while my original thread on this said it was a 1974 model, it is a 1964. I must have been having decade dyslexia when I typing the message.. The only information I can find for sure about this is this photo of another 64 Carlton. If any of you know who or where would be a definitive source for information I'm all ears. Thanks..