SRAM Force D2 1x Power Meter crankset

It’s the best of both worlds. A light and stiff direct mount chainring with accurate Quarq power measurement elegantly hidden inside the DUB spindle lets you stealthily gather the data you need to progress.  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 AAA lithium 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: FC-FRC-1P-D2 Attributes BB Inclusion No BCD Direct Mount Chainline 45mm Connectivity ANT+, BT LE Crank Spindle Diameter 28.99mm Crankset Material Carbon Drivetrain Spacing Road Disc Interface DUB Pedals Thread 9/16'' Primary Color Black Speed 12 Teeth 40