QUARQ DZero BB30 130 BCD Crank With Power Meter

DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer and the new Qalvin BLE app. Features: - Forged aluminum crank arms. - Bluetooth low energy technology and ANT+ wireless data transfer. - AxCad no cadence magnet required. - 10K Temperature Compensation. - Battery CR2032, 200-hour battery life, change without tools. - Power Balance. - OmniCal swap chainrings without affecting accuracy. - 2-year warranty. - IPX7 waterproof rating. - Accuracy within 1.5%, measuring both legs. - Free firmware upgrades with the Qalvin app. Essential Details - Variations include Hidden Bolt (HB), Non-hidden Bolt (NHB). - Pairing a HB version and SRAM chainrings will align the chain derailment pin and crank arm. - NHB versions work with traditional 5-bolt chainrings from most manufacturers. - Forged aluminum models do not work with BBright or BB386EVO bottom brackets.