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Shimano Ultegra R8000 Groupset Road Bike Bicycle 11 22 Speed Update Ultegra 6800 Group Set 170/172.5/175mm 53-39t 50-34t 52-36t - Bicycle Crank & Chainwheel - AliExpress
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Amazon.com : JKSPORTS OEM ShimanoUltegra R8000 Groupset 12-25T 50x34/52-36/53-39T 165/170/172.5/175mm (170MM, 50-34T) : Sports & Outdoors
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