• No it's not.
    When you buy a new groupset you get the choice of choosing crank arm lengths and cassette ratio.
    Not everyone likes the same
    I was interested in the groupset
    Hence why I asked the stupid dumb questions!
    As
    A- I prefer cranks 170mm
    B - cassettes in ratio in this ratio or slightly bigger.

    And thanks for the info on the above topics.

    Are they 53/39 or compact cranks? that would make a world of difference!
    I think the most you can go to on athena cassette is 27, 29 on record.

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