Quarq’s power meter cranks continue to be reliable, accurate and easy to use. The Dzero series offers more data transfer and frame fit compatibility. Swap chainrings without needed to recalibrate.
Measures power for both legs with +/_ 1.5% accuracy
Dual Bluetooth lowenergy and ANT+ wireless data transfer
AxCad system provides no-magnet cadence data
Free firmware updates with the QALVIN APP
Uses a CR2032 battery that can be replaced without tools