4iiii - Viiiiva Heart Rate Monitor Stock Item:4iiii ViiiiVA HEART RATE MONITOR, CHEST STRAP But what's with the different-sized

But what's with the different-sized wheels

Limited edition ALL BLACK Corsa Pro

"D" handle (spades)

which translates rider input for a smooth application of power

4iiii - Viiiiva Heart Rate Monitor Stock Item:4iiii ViiiiVA HEART RATE MONITOR, CHEST STRAP But what's with the different-sized4iiii 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