Originally Posted by
The LT
Unless something has changed the splines on the hub aren't specific to sturmey archer rather they are the same as shimano cassettes
It looked very similar, but I pulled a small gear out of an old shimano cassette, maybe a 12 or 13 tooth cog, and tried to put it on the splines and it didn't seem to fit. Maybe I was doing something wrong, but there was a slight difference between the splines on the S3X and those on the cog that I tried to fit to it. It looked like something that I could have fixed by taking a metal file to one of the grooves in the cog, but I didn't try.