QUARQ DZERO DUB 130BCD POWER METER SPIDERREACH NEW GOALSMeasuring power is a great way to keep track of your progress. You can easily keep tabs on your power with a power meter connected to your cycling computer. The Quarq DZero DUB 130BCD Power Meter Spider delivers accuracy, durability, and reliability. It is built with broad compatibility and will work with most 10 and 11-speed chainrings. It is compatible with SRAM DUB bottom brackets and features Bluetooth low energy technology and ANT+ wireless data transfer. Features Magic Zero automatically checks and recalibrates your power meter as you ride Ax Cad so you don't need a cadence magnet Omni Cal so you can swap chainrings without affecting accuracy IPX7 waterproof rating so you can ride in any condition Highly accurate with measurements within 1. 5% | Quarq | Dzero Dub 130Bcd Power Meter Spider 130Bcd, 8 Bolt Mount, 10-11Spd, 1X & 2X | Aluminum