I’m currently running Shimano GRX 1×11, with a 10-42t cassette, an RX812 derailleur, and RX600 levers. I’m wondering how I can get more gear range without having to spend too much or change my entire drivetrain. My thoughts were on finding a different 11s derailleur that can accommodate a bigger max cassette cog, not sure what if any options I have there. Thanks for the help!

by Working_Inspector312

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8 Comments

  1. A 2 x 11, a freewheel with bigger sprocket if your derailleur can handle it, or a bigger front chainring.

  2. Smaller Chainring. You’ll loose a little top end but gain more low end. Look up a gear inch chart to get an idea of the change.

  3. Smaller chainring is the only option I can think of that wouldn’t force you to change most of the drivetrain

  4. If you swap the cage for an RD-M8000 cage, you can clear a 51 tooth sprocket, from the CS-M5100 cassette.

    Edit:

    11 speed, HG freehub body can only fit an 11 tooth sprocket (with a normal Shimano cassette). Are you certain you have a 10 tooth top gear?

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