Power every ride. We’ve taken the reliability, elegance and features of Quarq’s legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. FEATURES An elegant integrated design DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides User replaceable lithium AAA battery DUB bottom bracket adds durability and simplicity Waterproof (IPX7 waterproof to 1 meter for 30 mins) Lightweight (less than 40g heavier than standard crankset) Wide chainline crankset for bikes with the widest gravel tires SPECIFICATIONS Speeds: 12 Crank arm length: 160mm, 165mm, 170mm, 172.5mm, 175mm BB Compatibility: All SRAM Road WIDE DUB BBs Chainring Size: 40T, 46T Bolt Circle Diameter (BCD): Direct Mount (DM) Chainline: 47.5mm BB Spindle Interface: DUB Chainring material: Aluminum Guard: No Guard Crank arm material: Aluminum Color (Crank arm): Black Power Meter Type: Spindle Hub Spacing Compatibility: Standard 142mm