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Shimano Ultegra R8050 R8010 Di2 2x11-speed Groupset Road Bike Groupset 170 50-34 53-39 Bicycle Group Set 2*11 Speed - Bicycle Crank & Chainwheel - AliExpress
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Shimano Ultegra Di2 RD-RX805-GS Rear Derailleur- 11 Speed, Medium Cage, w/Clutch 689228340558 | eBay
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