The Rival DUB crankset by SRAM for 2x12-speed drivetrains allows for left-sided power measurement thanks to the power meter inconspicuously integrated into the axle.

Features
DUB-PWR Axis unit measures left-sided power to determine total wattage
Elegant, integrated design
Proven reliability and accuracy with Quarq technology
DUB bottom bracket system for durability and simplicity
Energy display (total power), calibration, and battery status display via app
Long battery life covers an entire season
User-replaceable battery
IPX7 waterproof up to 1 meter for 30 minutes
Light - only 40 g heavier than a standard crankset

Specifications
Application: Road
Type: Crankset with power meter (left)
Compatibility: 2x12-speed
Chainring Mount: 107 mm pitch circle, 4-arm asymmetrical
Series: Rival
Crank Arm Material: Aluminium
Chainring Material: Aluminium
Gradation: 33-46, 35-48
Crank Arm Length: 165.0 mm, 170.0 mm, 172.5 mm, 175.0 mm
Chainline: 45.0 mm
Axle Diameter: 28.99 mm
Recommended Bottom Bracket: All SRAM Road DUB
Tolerance: +/- 3%
Point of Measurement: Crank axle
Power Source: AAA micro battery
Battery Life: 400+ h
Data Collected: Power (left side), cadence, torque
Waterproof: IPX7
Data Transfer: ANT+, Bluetooth

Mfr Claimed Weight
TBC