QUARQ DZERO DUB 110BCD POWER METER SPIDERMORE POWER! Power is a great way to measure how well you're doing as a cyclist. With a power meter on your bike, you'll be able to reach new goals and explore new roads. The Quarq DZero DUB 110 BCD Power Meter Spider is built with broad compatibility and will work with most 10 and 11-speed chainrings. It features Bluetooth Low Energy technology and ANT+ wireless data transfer, Magic Zero that automatically checks and recalibrates your power meter as you ride, Ax Cad, and an IPX7 waterproof rating. Features Ax Cad means no cadence magnet required Magic Zero automatically checks and recalibrates your power meter as you ride Omni Cal makes it easy to swap chainrings without affecting accuracy | Quarq | Dzero Dub 110Bcd Power Meter Spider 110Bcd, 8 Bolt Mount, 10-11Spd, 1X & 2X | Aluminum