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Shimano Di2 Grx Rx815 11 Speed Rx815 Rx817 Groupset Road Bike Groupset 170/172.5/175mm 40/42t Bicycle Group Set 11 Speed - Bicycle Derailleur - AliExpress
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Shimano's electric GRX Di2 RX800 11-speed gravel groupset: full weights, prices and specs | off-road.cc
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shimano Di2 GRX RX815 11 Speed RX815 RX817 Groupset Road Bike Groupset 170/172.5mm 40/42T Bicycle Group Set 11 speed|Bicycle Derailleur| - AliExpress
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