Hi all, I’m not a two-speeder person, but a few weeks ago I bought three two-speed gear units as part of a spares cache. They have been badly stored, but the rust on the sprockets was superficial, and most of it cleaned off very easily, revealing very little wear on the teeth. Before moving them on I would like to identify and date them. What I suspect is the oldest has an open-spoked larger sprocket (25 and 46 teeth), and is stamped 1995.
The next one also has an open-spoked larger sprocket (25 and 47 T), and it is stamped with two numbers, 3765 and 8469.
The third one seems to be closer ratio, at 25 and 36 T, and the larger sprocket isn’t open spoked. It is stamped 7756 and 3765.
The eagle-eyed will have noticed that the number 3765 occurs on two of ’em, so what is a serial number, and what is an overhaul number, is unknown to me. Any two-speed experts out there able to enlighten me ?
Brian