Thread: Shimano GRX RD-RX400 RD w/ 11-42 cassette
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Old 04-27-21, 09:16 PM
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Loose_head
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My wife has a stock Liv Devote 1 with 32 - 48 Chainrings 11 - 34 cassette grx 400 10 speed.

Using the capacity formula, the biggest cassette is 11 - 36 to get 41t, is that correct? So I can't go more than the official spec and stay 2x?

Thanks
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