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Stages Shimano XTR M9100/M9120 Power Meter

Josh Matthew November 30, 2022

$569.99

Add Stages power to your Shimano M9100 or M9120 model crankset

Clear selection

Stages Shimano XTR M9100/M9120 Power Meter

The Stages Shimano XTR M9100/M9120 Power Meter brings power to M9100 and M9120 MTB cranksets. Simply remove your current left-side crank arm and replace it with your Stages power meter and you’re set!

This Stages power meter features +/- 1.5% accuracy, 200 hours of battery life and is lightweight at only 15 grams of added weight. The power meter is compatible with both ANT+ and Bluetooth SMART devices. This means it’s compatible with your favorite bike computer, smart phone or tablet.

 

Key Product Details

Compatibility:

This Stages power meter is compatible with XTR M9100/9120/9130 cranksets. It is also compatible with all other Shimano x100/x120/x130 series MTB cranksets such as the XT M8100/M8120/M8130 or the SLX M7100/7120/7130. See Compatibility tab for more information.

Power Measurement:

This Stages power meter measures left leg power and doubles the value to account for both legs (assumes both legs are generating the same force).

Key Features:

Affordable, accurate to within +/- 1.5%, lightweight at only 15 grams of added weight, 200+ hours of battery life, CR2032 user-replaceable battery, ANT+ and Bluetooth compatible, easy to install. See Specs tab for more information.

Advice From Our Staff:

Stages left side crank arms are some of our best-selling units. They work with most Shimano cranksets, are affordable and easy to install. The one consideration is they only measure left leg power compared to some other power meters that measure power from both legs (those versions usually cost more however).

 

Options For This Power Meter

Crank arm lengths: This power meter is available in the following crank arm lengths:

  • 165 mm | 170 mm | 175 mm

 

Options For This Power Meter

Dual-Sided XTR M9100/M9120 Crankset: We also sell the Stages Shimano XTR M9120 Dual-Sided Crankset which is a complete crankset. It is more expensive, however it measures power from both legs.

Right-Side XTR M9100/M9120 Crank Arm: If you currently have a Stages Shimano XT M8100/8120 left side crank arm, we have the Stages Shimano XTR M9120 Driveside Power Meter which allows you to upgrade to a dual-sided power meter. Or, some bike frames cannot fit a left side crank arm-based power meter due to clearance issues with the chainstay. In these situations, the Stages right side power meter is a perfect solution.

Compatibility

Crankset: The Stages power meter is compatible with XTR M9100/9120/9130 cranksets. It is also compatible with all other Shimano x100/x120/x130 series MTB cranksets such as the XT M8100/M8120/M8130 or the SLX M7100/7120/7130.

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

Check Frame Clearance: Crank-arm based power meters like this one attach a sensor on the inside of the left crank arm. On some bikes, there is not enough room between the left crank arm and the chainstay for the sensor to clear the frame. Therefore, you should make sure you have at least 10 mm of clearance between the left crank arm and the chainstay - and that you don't have a bottom bracket mounted rear brake (used on some aero and TT bikes). The important area to measure is right in the middle of the crank arm. Please refer to the image below.

If you find that you have around 7-9 mm of clearance, what many people will do is simply install a 1 or 2 mm bottom bracket spacer (between the left crank arm and the frame), which will give them the clearance they need.

The clearance between the frame and left side power meter crank arm

Stages Shimano XTR M9100/M9120 Specs

NameStages Shimano XTR M9100
Bike TypeMTB
Location of Power MeasurementCrank Arm
Left or Both Legs MeasuredLeft only
Independent Left/Right MeasurementNo
InstallationEasier
Crank Arm MaterialAluminum
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.5%
Automatic Temp. CompensationYes
Weight15 grams (added weight)
Battery TypeCR2032 coin cell
Battery Life200+ hours
Method of Cadence MeasurementAccelerometer
Warranty1 year

In the Box

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

Tools Needed for Installation

You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.

  • 8 mm Allen key
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