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Stages Cycling

Stages Cycling Power L Powermeter Crank Arm for Shimano Ultegra R8000 (2020)

ID: 930339
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Product Description

The Stages Power meter is built on to a non-drive side Shimano Ultegra R8000 crank arm, is compatible with all frames that fit Shimano Hollowtech II cranks and impresses with its low additional weight of only 15 grams.

With an accuracy of +/-1.5 %, an integrated accelerometer for measuring cadence and an active temperature compensation as standard function, the Stages Powermeter also impresses with its simple handling. For Shimano models you can also choose between a single-sided or dual-sided power measurement system. Via Bluetooth Smart and ANT+, the Stages Power can be connected to all common head units (Garmin, Polar, Sigma, Suunto, Wahoo, and others) as well as to smartphones in seconds.

Tour Proven
Stages Power has carried riders to three consecutive Tour de France victories, plus many more world and national championships. If you believe racing provides the world’s best product proving ground, then Stages Power is proven as the world’s best power meter.

Active Temperature Compensation as standard equipment
Consistency of measurement is the most important feature of a power meter. Stages Power was the first meter to make temperature compensation an automatic process ensuring accurate readings no matter the environmental conditions. ATC is the key reason a rider can trust data from Stages Power in all conditions.

Individual meter calibration for the most accurate results
Each Stages Power meter is calibrated individually to ensure a +/- 1,5% accuracy level, which is an industry best for non-scientific power meters. Individual calibration for the dual-sided option means that you can trust the data produced by our system, as it's a real measurement and not an estimation.


  • Flat design with robust connection between battery cover and housing
  • Tool-free battery change on the left crank arm
  • Battery life: 200+ hours (CR2032 button cell)
  • Power range (Watt): 0 - 2500
  • Cadence range (rpm): 20 - 220
  • Waterproof: IPX7
  • Wireless firmware updates
  • Integrated LED display visualises battery status and calibration result. No active connection to the app or the bike computer necessary.
  • Improved acceleration sensor and additional integrated ring laser improve cadence resolution
  • Near field communication (NFC) with "Tap-To-Pair" for easy connection to many smartphones and other devices
  • Improved Bluetooth and ANT+ antennas increase data transmission strength by a factor of 6
Intended use
Chainring Number: Without Chainring  
Compatability circuit: 11-speed
Build: without chainring
Axle Clamp: 24 mm
BCD: Without bolt circle
Hole circle type: Without bolt circle
Crank arm (s): Aluminium  
Scope of Delivery
Delivery: Powermeter mounted on the left crank arm, high-quality CR2032 button cell battery  
Model year
Product number
Customer Ratings
8 Customer Ratings
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4 Stars
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1 star
Stages R8000 L
Stages R8000 L
Translated from German To the original

Installation super, simply replace the crank arm (105, Ultegea or Dura Ace) with this. In this case, connecting to Garmin Edge 520 Plus is very easy to find and recognize directly. The cadence measurement is included in the connected power meter (no separate sensor). A firmware update is self-explanatory via the app, just follow the instructions. For simple tea purposes completely sufficient and inexpensive.

Installation super, einfach Kurbelarm (105, Ultegea oder Dura Ace) gegen diesen tauschen. Verbinden in diesem Fall mit Garmin Edge 520 Plus sehr einfach wird direkt gefunden und erkannt. Im verbundenen Leistungsmesser ist die Trittfrequenz Messung enthalten (kein gesonderter Sensor). Über die App ist ein Firmwareupdate selbsterklärend möglich einfach den Anweisungen folgen. Für einfache Teainigszwecke vollkommen ausreichend und preiswert.

Translated from German To the original

Easy to install is only possible if you have a crank tool, then it works perfectly.

Einfach anbauen geht nur, wenn man ein Kurbel-Tool hat, dann klappt es auch einwandfrei.

Simply attach and off you go.
Einfach anbauen und los gehts.
Translated from German To the original

Can be installed easily and works perfectly. The power meter is recognized immediately after every ride.

Lässt sich leicht installieren und funktioniert einwandfrei der Powermeter wird bei jeder Fahrt immerhin gleich erkannt.

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