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SHIMANO DURA ACE ULTEGRA EW WU111 Di2 Wireless Data Transmitter Unit EW SD50 E Tube WU111 SD50 150mm|Bicycle Derailleur| - AliExpress
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New SHIMANO 105 Di2 Delivers 12-Speed Shifting and Wireless Performance to More Riders | SHIMANO BIKE-US
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SHIMANO Wireless Unit for Di2 System, EW-WU111, E-Tube Port X2, for 52 Countries : Sports & Outdoors - Amazon.com
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