sram-red-quarq-dzero-130mm-bcd-hidden-bolt-road-power-meter-crank-gxp-172-5mm-rings-and-bb-not-included
sram-red-quarq-dzero-130mm-bcd-hidden-bolt-road-power-meter-crank-gxp-172-5mm-rings-and-bb-not-included, SRAM's power meter cranks continue to be reliable, accurate and easy to use. The Dzero series 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