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It Works!! // The $127 Shimano GRX Mullet Upgrade
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The Ideal Tour Divide Drivetrain? Ultra-Wide Range Shimano GRX 2X11
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Mixing ANY Shifter with ANY Derailleur || The Mullet Drivetrain HACK
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14:43
Here's the Thing about the New Shimano GRX Di2...
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Shimano GRX 812 Rear Derailleur Fitting Guide
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