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  • Are you suggesting just putting the 34t chainring on the 10spd bike? That might be a cheap option. Am assuming the erg mode on the kickr core will be much better than the Tacx where I had to use gears to help get appropriate resistance.

  • @dancing james

    A 5 bolt narrow wide chainring would fit your da7900, and maybe a second hand cassette for the turbo?

    Replacement Duraace rings are silly money.

    Shifting quality and chain wear are less important if you’re in ERG mode and not changing gear much.

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