Reach new goals and explore new roads with a power meter that delivers on accuracy durability and reliability. The Quarq DZero AXS DUB Power Meter Spider is built with broad compatibility and will work with most 10 speed and 11 speed chainrings.Spider must be paired with a compatible Quarq DZero DUB crankset with an 8-bolt interface and SRAM DUB bottom bracketNot compatible with SRAM's 3-bolt direct mount interfaceDZero DUB is designed for the most major brands of 10 and 11-speed chainringsBluetooth low energy technology and ANT+ wireless data transferMagicZero technology automatically checks and recalibrates your power meter as you ride - no need to manually calibrateAxCad system provides no-magnet cadence dataOmniCal system allows you to swap chainrings without affecting accuracyUse the AXS app to easily update firmware and view power meter metricsUses a CR2032 battery that can be replaced without toolsMeasures power for both legs with +/- 1.5% accuracyIPX7 waterproof rating