SRAM Force Power Meter 1x Crankset WIDE - 40t

Force AXS makes upgrading to power simple so you can focus your efforts on the bike, not on the install. There's a power upgrade available for all Force AXS gearing options, so you can make data-backed decisions on pavement, gravel, and everything in between. Power is the most accurate way to measure, track, and improve your fitness. By understanding your output on the bike, you can adjust how you train to optimize your cycling performance. 

The only thing more irresistible than the iridescent carbon crankarms is setting a new personal record, and with Force AXS, you can measure your power and make it happen.

We’ve hidden the power measurement unit inside the DUB spindle, adding just 40 grams to your bike. Using left side power to calculate total watts, this upgrade lets you stealthily gather the data to meet your goals. It’s fully waterproof for even the greasiest of gravel rides, and it’s available in a Wide spindle for compatibility with the widest of mixed-terrain tires. 

With a AAA lithium battery tucked inside the spindle, you'll ride for 400+ hours before needing to replace it. Check the battery status by waking the power meter with a half backpedal. A green LED means go, and a red one means you should stop for a swap:

• Remove the battery sled from the spindle with a quarter turn using your fingers or a spanner wrench.
• With the sled out, replace the battery with a new lithium AAA in the proper orientation.
• Slide the sled back into the spindle, tighten it with a quarter turn, and resume your ride.