SRAM Rival D1 Quarq Wide 1x

Power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. DUB-PWR spindle-based unit measures left side power to calculate total watts 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) SRAM Model ID: PM-RIV-1W-D1