SRAM Rival D1 Quarq Road Power Meter DUB (BB Not Included):

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) Available in 48/35 T and 46/33 T configurations SPECIFICATIONSSpeeds: 12 Crank arm length: 160mm, 165mm, 170mm, 172.5mm, 175mm BB Compatibility: All SRAM Road DUB BBs Chainring Size: 46/33 T, 48/35 TBolt Circle Diameter (BCD): 107 BCDChainline: 45.0mm BB Spindle Interface: DUBChainring material: Aluminum Guard: No Guard Crank arm material: Aluminum Color (Crank arm): Black Power Meter Type: Spindle Hub Spacing Compatibility: Standard 142mm