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SHIMANO EW-WU111 Di2 Wireless Data Transmitter Unit EW-SD50 E-Tube 200mm 250mm Wire 1pcs - AliExpress
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Shimano SHIMANO WU111 SD50 200mm wireless Bluetooth transmitter built-in Bluetooth transmitter sensor
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SHIMANO DURA ACE ULTEGRA EW-WU111 Di2 Wireless Data Transmitter Unit EW-SD50 E-Tube WU111 SD50 150mm - AliExpress
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