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Actual Weights: Fair Wheel Bikes weighs the new Shimano Dura-Ace R9200 Di2 Wireless 12 Speed Group - Bikerumor
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SHIMANO Reignites the Road with New 12-Speed DURA-ACE R9200 Premium Road Components | SHIMANO BIKE-US
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EuroBikeParts: Shimano Ultegra R8170 12s Di2 Hydraulic Disc Electronic Group, Shimano, SH-UL8170-Di2-Full
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