![Shimano brings Synchro Shift to Ultegra 6800 & Dura-Ace 9000 via battery & firmware update - Bikerumor Shimano brings Synchro Shift to Ultegra 6800 & Dura-Ace 9000 via battery & firmware update - Bikerumor](https://bikerumor.com/wp-content/uploads/2015/03/shimano-dura-ace-9000-di2-hacked-for-synchronized-shifting.jpg)
Shimano brings Synchro Shift to Ultegra 6800 & Dura-Ace 9000 via battery & firmware update - Bikerumor
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Amazon.com : SHIMANO Cycling Y5YC98080 Ultegra Di2 6870 11 Speed RD-6800 Outer Plate & Plate Stopper Pin - GS Type : Sports & Outdoors
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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
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