Originally Posted by
jonwvara
In theory, Shimano makes a 24, but no one ever has one or can get them. But it's very easy to file down the splines on a cassette cog to get it to fit--takes maybe 20 minutes with a half-round file. You can fit a 28-tooth cog inside one of the "hockey stick" chain guards if you loosen the band clamp that holds it to the seat stay at the back and move it up a little bit.
So you mean you could take a cog from an old 10 speed grouping and then modify it and it will fit the SA AW?
If so, how do you go about removing a single cog from a grouping? I have an old Japanese 10 speed around with an apparently damage rear wheel. I wonder if I could get a cog from that.
Edit: the more I think about this approach, the less I like it. But how difficult would it be if I decide to change my mind and try it? I believe the parts are Suntour Honor parts.