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Amazon.com : Shimano GRX ST-RX815 2 x 11-Speed Di2 Left Drop-Bar Shifter/Hydraulic Brake Lever with BR-RX810 Flat Mount Caliper, Pre-Bled, 1000mm Hose : Sports & Outdoors
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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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