Quarq Powermeter Spider DFour AXS Dub / Spider Only

Sram: DFour DUB power meter spider must be paired with a compatible Quarq DZero DUB crankset and SRAM DUBTM bottom bracket. DFour DUB is designed for Dura-Ace R9100 chainrings Every innovation in Quarq’s DFour platform represented the 10+ years of Quarq’s advances in power meter technology. This same platform is now combined with SRAM’s innovative DUB technology to bring you the simplest spider-based power meter. Simplified part choices, quality materials and a broader compatibility for bottom brackets and chainrings, brings power on every ride. Features & Benefits MagicZeroTM - automatic calibration as you ride. No need to back pedal or manually calibrate through your headunit. 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