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Shimano Ultegra Di2 R8170 2x12 Speed Groupset Road Disc Brake Groupset - Bicycle Crank & Chainwheel - AliExpress
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EuroBikeParts: Shimano Ultegra R8170 12s Di2 Hydraulic Disc Electronic Group, Shimano, SH-UL8170-Di2-Full
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Shimano Ultegra ST-R8170 Hydraulic Di2 Lever, Hose and BR-8170 Flat Mount Brake Caliper, Right Rear | Texas Cyclesport
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