• Re low gearing chat, the GRX rear mech will work 11-42 x 50/34

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  • If you need that low a gear surely you don't need a 50 X 11? Sure, range is good but the jumps in that cassette are huge.

  • Worst of both worlds. Massive, heavy cassette with big jumps and annoying front shifting. Extra anti points for being in a full road bike

  • I ran 11-42 with 46/34 rings during Transiberica using a stock Ultegra DI2 R8000 RD setup.


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