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Stages Shimano XT M8100/8120 Power Meter

Power Meter City September 22, 2021
5.00 out of 5 based on 5 customer ratings
(5 customer reviews)


Add Stages power to your Shimano XT M8100/8120/8130 crankset!

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Stages Shimano XT M8100/8120 Power Meter

The Stages Shimano XT M8100/8120 Power Meter brings Stages power to your MTB bike! Compatible with the XT M8100/8120/8130 cranksets, the Stages power meter is accurate, durable and ready to handle the toughest terrain. Simply remove your current left-side crank arm and replace it with the Stages power meter and you’re done!

The power meter is extremely lightweight – adding only 15 grams to the weight of the crank arm. All Stages power meters are compatible with both ANT+ and Bluetooth SMART devices, which means you can use your favorite bicycle computer as well as a smartphone or tablet.

The Stages Generation 3 power meter features radio antennas that are 6x more powerful than the previous version. This means better compatibility with both bike computers and watches. The new versions also feature improved accuracy (+/- 1.5%) and have an LED indicator light on the housing for improved ease of use.



Crank arm lengths: 165 mm | 170 mm | 175 mm



The Stages power meter is compatible with XT M8100/8120/8130 cranksets. It is also compatible with all other Shimano x100/x120/x130 series MTB cranksets such as the XTR M9100/M9120/M9130 or the SLX M7100/7120/7130.

It is not compatible with x000 series crankset such as the XTR M9000’s, XT M8000’s or SLX M7000’s.

Please note, this product requires a Shimano Crankarm Cap Tool (sold by us separately) for installation.


Tools Needed for Installation

  • Shimano Crank Arm Cap Tool (sold by us separately)
  • 5 mm Allen key


In the Box

  • Stages Power Meter
  • 2032 coin cell battery
  • Quick Start guide


Stages Shimano XT M8100/8120 Specs

NameStages Shimano XT M8100/8120
Bike TypeMTB
Location of Power MeasurementCrank Arm
Left or Both Legs MeasuredLeft only
Independent Left/Right MeasurementNo
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.5%
Weight15 grams (added weight)
Battery TypeCR2032 coin cell
Battery Life200+ hours
Method of Cadence MeasurementAccelerometer
Warranty1 year


5 reviews for Stages Shimano XT M8100/8120 Power Meter
  1. James (verified owner)

    Could not ask for more. I ordered this on Saturday and it was shipped same day; USPS delivered Monday. That’s about the fastest turnaround I can recall ever. The XT crankarm was well packed and exactly as expected; it works perfectly (I’ve had power meters for many years so no surprises). This is my second Power Meter City purchase and I’d not hesitate to come back for a third.

    • Power Meter City

      Thank you James – we really appreciate this! We are glad it arrive on time and it looks like you are enjoying them. Please let us know if there is anything else we can do!

  2. Chris (verified owner)

    Excellent customer service and communication. Easy installation and setup. Accurate and useful data from the meter itself.

    • Power Meter City

      Thanks for this kind review Chris. We hope you will enjoy your new Stages power meter. We are here if there is anything else we can help you with! Ride safe!

  3. Omer mun (verified owner)

    Great service, fast shipping .
    The left arm stages power meter unit is a great cost effective option for power data.
    Highly recommend.

    • Power Meter City

      Hi Omer. We are glad you finally have your Stages Shimano XT M8100/8120 Power Meter and it arrived on time! Let us know if there is anything else we can do!

  4. David Williams (verified owner)

    Great product, easy to fit and setup. Accuracy is good and compares well to the double sided meter on my road bike.
    Ordered from Australia and it arrived in under a week!

    • Power Meter City

      Hi David. Thanks for leaving a great review on your Stages Shimano XT M8100/8120 Power Meter. We are glad it arrived on time as expected. We hope you continue to enjoy them and we are here if there is anything else we can help you with!

  5. Emmanuel Coutiño Moreno (verified owner)

    Cheap and reliable. Always agrees with my left side garmin vector 3; and paired with my drive side stages power meter, gives me perfectly consistent numbers, compared with my trainer. It’s a 9.5 out of 10, just because is left only.

    • Power Meter City

      Hi Emmanuel. Thanks for this review on your Stages. We hope you continue to enjoy them! We are here if there is anything else we can help you with!

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