4iiii - Viiiiva Heart Rate Monitor Stock Item:4iiii ViiiiVA HEART RATE MONITOR, CHEST STRAP the smartphone or energy bar

the smartphone or energy bar can be stowed in the bag

making it a great choice for gravel bikes

No chain de-assembly needed

we’re happy to help

4iiii - Viiiiva Heart Rate Monitor Stock Item:4iiii ViiiiVA HEART RATE MONITOR, CHEST STRAP the smartphone or energy bar4iiii Viiiiva HEART RATE MONITOR Take Your Training To Heart: The 4iiii Viiiiva is a precision instrument designed to capture the most accurate picture of your internal physiological effort. Whether youre pushing through a high intensity workout, pacing a marathon, or climbing the virtual mountains of Zwift, the Viiiiva provides the real time data needed to optimize performance, track cardiovascular fi tness, and manage recovery with professional