I am going to change my 1967 5513 Subby back to original spec and have now located a Twin-Lock crown and a Twin-Lock tube. My question is can I use my existing Triple-Lock stem with the new arrangement or is it different? If it is different, does anybody know the spec number of the Twin-Lock stem?
Thank you all in advance. Cheers from very wet Melbourne.
Crown and tube are all you need. Some watchmaker might retape the case to retro fit the tube. In my (amateur) experience, you don't need that. You also don't need a new stem.