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4iiii • Powermeters + heart rate monitors for cycling and triathlon | Viiiiva – More than a Heart Rate Monitor
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4iiii unveils Viiiiva heart rate monitor that wirelessly links to your iPhone or smartwatch | Engadget
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4iiii • Powermeters + heart rate monitors for cycling and triathlon | Viiiiva – More than a Heart Rate Monitor
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4iiii Shop - USA/World: Heart Rate Monitors: Viiiiva combination Heart Rate Monitor, ANT+ bridge, and data recorder
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4iiii Left-Side Precision 3 Crankarm with Powermeter + 4iiii Viiiiva V100 Heart Rate Monitor - Shimano RX810 GRX NDS - Special Offer
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