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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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SIGMA BC 14.16 Bicycle Computer, Wired | Altitude Functions - Slope, Gradient | Full Text Display, Auto Start/Stop, Automatic Bike Recognition & Pairing | IPX8 Water Resistant | Tool Free Mounting : Sports & Outdoors - Amazon.com
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