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Amazon.com: Sigma ROX 4.0 GPS Bike Computers, Black, Altitude, Navigation, Large Display, Easy 3 Button Operation, E-Bike Ready, Smart Phone Connectivity, Lightweight, IPX7 Water Resistant (Computer Only) : Electronics
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Amazon.com: SIGMA ROX 2.0 GPS Bike Computer, Top Mount Set, Black, Navigation, Large Display, Easy 2 Button Operation, Quick Mounting, E-Bike Ready, Smart Phone Connectivity, Lightweight, IPX7 Water Resistant
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