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Shimano Grx Rx810 1x11 Speed Rx810 Rx812 Groupset Road Bike Groupset 170/172.5 30/32/34/40/42t Bicycle Group Set 1*11 Speed - Bicycle Derailleur - AliExpress
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Shimano GRX RD-RX812 with an 11-46 Cassette. Will this work? Low Gearing on a Gravel Bike. - YouTube
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