Gravel Mullet Drivetrain Compatibility Matrix Infographic
Every verified road shifter × MTB derailleur combination for mullet gravel builds.
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<iframe src="https://cranksmith.com/infographics/mullet-drivetrain-compatibility" width="800" height="600"></iframe>The “mullet” setup — a road shifter paired with an MTB rear derailleur — has become the gravel default for riders who want 10–12 speed road shifting with a 42t or 50t MTB cassette. But the compatibility matrix is not obvious, and a wrong combination results in indexing failure.
This infographic maps every verified combination: SRAM AXS Eagle road to MTB, Shimano GRX with XT/XTR via Wolf Tooth Tanpan or GoatLink, Campagnolo Ekar direct (no mullet needed), and the microSHIFT options.
Use this as your compatibility reference before ordering parts. Every pairing in the chart has been tested.
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