So, after my last post, I realised that some people might want the technical information to build the best cassette possible. I pulled out my old ExaDrive sheet...
When using ExaDrive cassettes, there is a letter assigned to each sprocket next to the number of teeth. This is not the same as the letters on the pre-ExaDrive cassettes, so you need to be aware of what cassette you are installing.
For optimal shifting, you want to stick to the table, but it will still work, even if you don't follow the table.
In the case of a 12-26, it's interesting to note that Campagnolo have never produced this combination. I would suggest running the desired cassette combo through Sheldon's gear calculator just to make sure you choose sprockets with a good range and no overlap...
Cool, so my guess at the 12-26 combo is identical to campy 12-25 bar the last cog; btw, mine are pre-exadrive, ( I think? ) no keyed spline, they are all the same.
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