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Stages CyclingCarbon Road GXP L Gen 3 Power Meter Crank Arm


Item # SGC0010

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  • Grey, 170mm ($539.99)
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Item # SGC0010

Carbon Road GXP L Gen 3 Power Meter Crank Arm

So you've got a perfectly good SRAM GXP road carbon crankset and you've been dabbling with the idea of upping your game and training with power. Stages has the solution to keep your drive-side arm and rings and add single-leg power in an affordable way to get the most out of your rides with its Carbon Road GXP L Gen 3 Power Meter Crank Arm. This made in-house carbon arm is extensively tested for accuracy and provides a cost-effective option for adding power to your existing SRAM GXP carbon crankset.

This isn't exactly the same crankarm as your current SRAM one, but the overall shape and carbon weave is very similar to the SRAM arm and of course, there's the Stages branding. On the inside of the arm is a power meter pod that’s bonded to the surface adding the ability to measure wattage so you can accurately gauge your efforts and train more effectively. Inside the IPX7 water-resistant pod are strain gauges and a Gen 3 updated accelerometer that measures rotational speed and the slight torsional bending of the arm 64 times per second to calculate power readings with a claimed +/- 1.5% accuracy that's perfectly in line with what we'd expect from any quality power meter. Stages uses Active Temperature Compensation that automatically adjusts for temperature swings during the ride so the measurements are more consistent. And to ensure your computer doesn't miss a watt, the Bluetooth LE and ANT+ radios have been beefed up to offer data transmission strength that’s 6 times stronger than before and the wireless firmware downloads via the Stages App lets you easily keep the power meter up to date.

Stages pulls off this amazing feat placing everything in a package that only adds 15 grams to the crank arm, which is next to nothing compared to the massive data tracking and training specificity that having a power meter affords. That's about the same as a swig out of your water bottle for a device that can certainly get you fitter than ever before.

  • A carbon fiber left crank arm with power reading capability
  • Measures power with +/- 1.5% accuracy
  • Active Temperature Compensation maintains accuracy
  • Updated internal accelerometer measures cadence
  • Powered by an easily replaceable CR2032 coin cell battery
  • Communicates via stronger Bluetooth LE and ANT+ wireless protocols
  • Pairs with Stages Power App for firmware updates and zero resets
  • Compatible with cranksets that have 10mm of clearance from chainstay

Tech Specs
Arm MaterialCarbon
Arm Length165, 170, 172.5, 175mm
Spindle24/22mm stepped
Compatible ComponentsSRAM 11-sped road
Recommended Usecycling
Manufacturer Warranty1 year

Actual Weight

Grey, 170mm

Claimed Weight

Claimed weights are provided by the vendor.

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[power meter] 0.5oz

Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?


>Rating: 5

Power without breaking the bank.

I've put it through the wringer

As a single-sided power meter its not 100% the most accurate option on the market but it is incredibly user-friendly and easy to set up. I calibrate every ride and get very consistent readings and no connectivity issues when pairing to a 3rd party app like zwift. A great option for power on a winter bike or if you're after a nice power meter that wont break the bank!


Will this crank ark work for all gxp crank sets? Including cheaper ones (1x sram apex)? Thanks

>Rating: 5

Nice powermeter

I've used it several times

I have used the Garmin Vector pedals for the last couple of years but they recently broke and I decided to give Stages a try. This power meter feels simpler and thus I expect them to be more durable than the Vectors. I also like the fact that they are bluetooth and ANT+ capable to communicate with my head unit or phone. Reliable so far.