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Cool Bikes Ahoy! – Our picks for 2020
Stages Cycling

Stages Cycling Power L Powermeter Crank Arm for Shimano Ultegra R8000 (2019)

ID: 930339
- £27
Incl. VAT, free shipping
Please choose crank length
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  • Order within 8 Hour(s) 3 min. , Shipping on Monday 3
  • Free delivery from £992
  • 100 day return policy
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 mm
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
3 Customer Ratings
5 Stars
4 Stars
3 Stars
2 Stars
1 star
Easy installation and setup
Einfache Montage und Einrichtung
Translated from German To the original

Ideal on Gravel. Road bike pedals in summer, mountain bikes in winter. Even after calibration, the arm measures about 10 watts more than my Garmin Vector 2 before. Repeat accuracy fits.

Am Gravel ideal. Im Sommer Rennradpedale, im Winter Mountainbike. Der Arm misst auch nach dem Kalibrieren ca. 10 Watt mehr als mein Garmin Vector 2 davor. Wiederholgenauigkeit passt aber.

Benjamin Lemke
Benjamin Lemke
Benjamin Lemke
Translated from German To the original

Ingeniously simple and perfectly adequate for me.

Genial einfach und für mich vollkommen ausreichend.

Simple and efficient
Simple et efficace
Translated from French To the original

Install in 5 min with the right tools. Configure in 30 sec. Results that hold up and for now not a failure. A good product.

Installer en 5 min avec les bons outils. Configurer en 30 sec. Des résultats qui tiennent la route et pour l'instant pas une défaillance. Un bon produit.

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