The XOSS ARENA Speed and Cadence Sensor is a compact dual-mode cycling sensor built for riders who want reliable training data without adding bulk to their bike. Weighing only 8.5 g and just 7.5 mm thin, it mounts discreetly on the hub or crank and works with virtually any bike, from road and mountain to gravel and commuter builds.
It communicates over both Bluetooth and ANT+ protocols, so it pairs with mainstream bike computers, sports apps and smart watches. The sensor dynamically optimizes sampling up to 100 times per second for precise speed and cadence readings, and the built-in CR2032 battery delivers up to 300 hours of use in speed mode.
Switch between speed and cadence mode in the XOSS app: a slow green flash means cadence mode, a fast green flash means speed mode. With IPX7 waterproofing and a protective O-ring seal, the ARENA keeps working through heavy rain and mud splash.
Mount the ARENA sensor on your wheel hub for speed or on the crank arm for cadence, then pair it with your bike computer, phone app or smart watch. Use the XOSS app to switch modes and review your training data. It suits road cyclists, MTB riders, gravel riders and anyone tracking speed or cadence during indoor and outdoor sessions.