The SRAM Apex Wide 12V Crank with Power Meter featured here at Escapa is an updated crank with a power meter designed to incorporate power measurement into compatible SRAM Apex AXS drivetrains. The power measurement technology is discreetly integrated into the Dub axle, maintaining a clean aesthetic and allowing for different chainring configurations. The system measures the power generated by the left leg and uses that information to calculate total power. It’s a lightweight and practical solution for monitoring intensity, analyzing performance, and structuring workouts based on watts.

SRAM Dub-PWR Technology

DUB-PWR technology integrates the measurement electronics into the DUB bottom bracket shell. This placement protects the system, avoids adding bulky components to the cranks, and maintains a discreet appearance on the bike.

The power meter records power from the left leg and doubles that value to estimate total power. Therefore, it provides unilateral measurement and does not independently analyze the balance between both legs.

This solution allows the power meter to be used with any compatible chainring configuration, since the measurement does not depend on a specific spider or chainring.

Quarq Measurement Technology

The DUB-PWR system incorporates Quarq’s expertise in power measurement, providing reliable data for structured training and performance tracking. Power data allows you to manage your effort more objectively than by using speed or heart rate alone.

Training by power helps you:

- Control intensity during intervals.

- Maintain a steady pace on climbs and long rides.

- Analyze performance trends.

- Calculate training load.

- Avoid overexertion at the start of a ride or race.

- Compare sessions regardless of wind or elevation gain.

Integration with SRAM AXS

The power meter is part of the SRAM AXS ecosystem, which connects electronic components to the SRAM AXS mobile app. From the app, you can check the battery status, receive maintenance alerts, and update the system’s firmware.

This connectivity makes it easy to keep the device up to date and check its status before starting a workout or race.

Compatible with SRAM Road Wide DUB Cranksets

The SRAM Apex AXS DUB-PWR is compatible with SRAM Road Wide DUB cranksets, except for Ai configurations. It uses a DUB axle interface and is designed for 12-speed road and Gravel drivetrains.

Before purchasing, it’s important to check:

- That the installed crankset is SRAM Apex AXS-compatible.

- That the bottom bracket is SRAM Road Wide Dub.

- That the bike does not use an Ai configuration.

- That the selected length matches the other crank arm.

- That the frame has the necessary clearance around the bottom bracket and the crankarm.

Different Crank Arm Lengths

The kit is available in the following lengths: 160 mm, 165 mm, 170 mm, 172.5 mm, 175 mm.

The length must match exactly the installed right crank arm. Installing different lengths would result in an asymmetrical position and improper pedaling.

Kit without chainring

This upgrade does not include a chainring. The system uses a Direct Mount interface, but the power meter is located on the axle and is compatible with various compatible chainring configurations.

For this reason, it is particularly appealing to riders who already own a compatible Apex AXS crankset and simply want to add power measurement.