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Stages FSA SL-K BB30 Power Meter

Josh Matthew June 27, 2024
5.00 out of 5 based on 3 customer ratings
(3 customer reviews)

Original price was: $559.99.Current price is: $419.99.

Save: $140

Award winning Stages power for FSA and Vision BB30 cranks

Please see our note below on Stages Rider Support

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Stages FSA SL-K BB30 Power Meter

The Stages FSA SL-K BB30 Power Meter comes ride ready and features +/- 1.5% accuracy and 200 hours of battery life. Stages power meters run off the popular CR2032 battery and include tool free battery replacement. In addition, it is extremely lightweight – adding only 15 grams to the weight of the crank arm. The power meter is 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 new 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 and have an LED indicator light on the housing for improved ease of use.


~Stages Rider Support~

It has come to our attention that Stages no longer has the resources to offer product support or warranty services. That said, if purchasing a Stages product, we do our best to answer product or troubleshooting-related questions. Knowing this, please shop Stages products assuming there may not be any future manufacturer support. Please note that Power Meter City cannot facilitate any warranty services.


Key Product Details


This power meter is compatible with FSA and Vision BB30 cranksets. While this crank arm is carbon, it can be used on both carbon and aluminum cranksets.

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 are affordable and easy to install. However, they only measure left leg power compared to some other power meters that measure power from both legs (those versions usually cost more however). Also, while this carbon power meter can be used on aluminum cranksets, some customers don’t like to mix and match crankset materials (aluminum crank and carbon power meter).


Crankset: This power meter is compatible with FSA and Vision BB30 cranksets.

Please note - this power meter is not compatible with:

  • FSA cranks with a pinch-bolt style interface
  • BB386EVO cranks
  • FSA triple chainring cranks

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 FSA SL-K BB30 Specs

NameStages FSA SL-K BB30
Bike TypeRoad
Location of Power MeasurementCrank Arm
Left or Both Legs MeasuredLeft only
Independent Left/Right MeasurementNo
Crank Arm MaterialCarbon
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.

  • 10 mm Allen key

Common Questions and Answers

Question: How do I determine what length my current cranks are so I can make sure I get the same size?

  • Your crank arm length should be printed or stamped on the inside of the left crank arm, usually near the pedal end.

End of crank arm showing crank arm length

3 reviews for Stages FSA SL-K BB30 Power Meter
  1. Scott (verified owner)

    I originally picked the wrong power meter for my bike. The staff was great at issuing an RMA and helping me get the correct meter. I have been riding with it for the past couple of weeks and everything is working great. Thanks to the staff for putting me on the right track

    • Power Meter City

      Glad we could, Scott! We hope you will enjoy your Stages FSA power meter and if there is anything else we can do, please let us know! Ride safe!

  2. Steve R (verified owner)

    Finally had the opportunity to ride with the power meter. The meter works great ! I just have to train myself to fully take advantage of the information !! Easy install and set up, works great with the Garmin 530 !

    • Power Meter City

      Hi Steve. Good luck on your rides! Hope you will continue enjoy them! Let us know if there is anything else we can do!

  3. Michele (verified owner)

    So very pleased with this purchase. Power Meter City made the leap into power fast and easy. Highly recommend the plunge!

    • Power Meter City

      Hi Michele. We’re glad to hear you are enjoying the Stages FSA SL-K! Keep up the good work!

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