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Shimano brings Synchro Shift to Ultegra 6800 & Dura-Ace 9000 via battery & firmware update - Bikerumor
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Shimano Dura-Ace 9000 crankset and 46/39 rings. Di2 9070 front derailleur. Mathieu van der Poel's 2015 World Championship-winning Stevens Super Prestige disc cyclocross bike. © Cyclocross Magazine - Cyclocross Magazine - Cyclocross
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