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Shimano Ultegra Di2 STR8170/BRR8170 right gear/hydr. brake, Dual Control, 2x12, Flat Mount, snake. 1700 mm + plates L03A - MTBIKER.shop
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Shimano Ultegra Di2 R8170 2x12 Speed Groupset Road Disc Brake Groupset - Bicycle Crank & Chainwheel - AliExpress
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Universal Cycles -- Shimano ST-R8170 Ultegra Di2 Hydraulic Disc Brakes [IR8170DLF6SC100A, IR8170DRRDSC170A]
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