42rambler

I have recently aquired a 1942 CCM rambler from my grandmother. It is in great shae, having been in a barn since about 1950. The problem is I need a new one peice crank, the origanal was broken the brazed back in place with one pedal missing and making it impossible to put a new pedal on.  any leads on getting one, im in Lethbridge, Alberta would be greatly appreciated!