Thread: Cassettes
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Old 11-16-21, 07:47 AM
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Originally Posted by canklecat View Post
Hey, sloar , which model is the 8-speed cassette? I can't remember whether all Shimano 8-speed cassettes are compatible with both Dura Ace and non-DA shifters and rear derailleurs. I have both Dura Ace and Ultegra 8-speed RDs, but only DA brifters.

I have one Shimano 8-speed 12-25 cassette, that came free with a nice older wheelset (Mavic rims, Ultegra hubs) that I bought used a few weeks ago. I worried that my 64 year old legs would prefer something like a 28T big cog, but on my lighter carbon fiber bike it turns out I can handle most of our short, steep hillettes with the 39T small chainring and 21 or 25 cog. But I couldn't find a model number on that cassette. It's currently paired with older Ultegra 8-speed RD and MicroShift brifters.
If I understand Sheldon's chart correctly, your 8sp DA brifters should work with any 8sp Shimano cassette. You need either the DA rear mech or a non-DA rear mech using alternate cable routing. So, the cassette should be agnostic -- it's the shifter/derailleur interface that could cause issues if not matched up correctly.

Sheldon's chart:
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