Ahoy! I've some questions, please, concerning Huret Jubilee rear derailleurs and, rear ders. generally speaking. Yes, I am trying to set-up a drive train incorporating a Huret Jubilee short cage rear derailleur.
Re: Huret Jubilee rear ders., short cage version I am of the understanding that the max. rear sprocket is 26t-28t, depending on one's specific set-up (that is: at these limits, it's a trial and error as to whether a 26t or a 28t can be handled). Can anyone confirm this, please? Yes, I'm trying to get an idea of what may work so I don't unecessarily purchase a heap of FW's that can't be used.
Re: Rear ders., generally speaking I am of the understanding that (A) the length of the parallelogram determines the max. size of the rear sprocket; and, that (B) the length of the cage determines the amount of chain take-up. Example: If the rear der. max. size of rear sprocket is 26t then, doing a retro-fit of a longer cage will allow for smaller (front) chain rings to be installed because more chain can now be wrapped but, the longer cage does not allow retro-fitting rear sprocket larger than the 26t max. (that is: one is"stuck" with the 26t rear sprocket). Do I understand correctly?
Thank you.
Richard Cielec
Chicago, Illinois; U.S.A.