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32 could be a real stretch, dependent of RD hanger and dropouts geometry.
If you want to be sure using 32 tooth cog, get the Ultegra 8050 GS RD.
Other than this, no problem to use either of the derailleurs with any other e-tube Di2 parts.
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Need more W/CdA.
If you want to be sure using 32 tooth cog, get the Ultegra 8050 GS RD.
Other than this, no problem to use either of the derailleurs with any other e-tube Di2 parts.
----------------------------
Need more W/CdA.