quarq-dfour-110mm-shimano-asymmetric-bcd-road-power-meter-crank-bb30-170mm-rings-and-bb-not-included
quarq-dfour-110mm-shimano-asymmetric-bcd-road-power-meter-crank-bb30-170mm-rings-and-bb-not-included, Quarq's power meter cranks continue to be reliable, accurate and easy to use. The Dfour model accepts Shimano road chainrings and offers more data transfer and frame fit compatibility.Measures power for both legs with +/_ 1.5% accuracyDual Bluetooth lowenergy and ANT+ wireless data transferAxCad system provides no-magnet cadence dataFree firmware updates with the QALVIN APPUses a CR2032 battery that can be replaced without toolsSwap chainrings without needing to recalibrate