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Pioneer Shimano Ultegra R8000 Power Meter

Josh Matthew January 13, 2020
4.67 out of 5 based on 3 customer ratings
(3 customer reviews)


Featuring Pioneer’s 12-point force measurement for high accuracy and advanced metrics

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Pioneer Shimano Ultegra R8000 Power Meter

The Pioneer Shimano Ultegra R8000 Power Meter comes ready to ride on a Shimano R8000 left crank arm. Featuring Pioneer’s 12-point force measurement for high accuracy and advanced metrics, it can measure pedaling forces every 30 degrees, for 12 points of measurement per pedal revolution. This level of measurement is unique to Pioneer power meters. In addition, when paired with a Pioneer Cycle Computer, you get access to Pioneer’s HDPower Metrics including Force Vector analysis, Torque Vector and Pedaling Efficiency power metrics.

The Pioneer R8000 Power Meter runs off an easy to change CR2032 battery and gets approximately 180 hours of battery life. The unit is lightweight, adding only 22 grams to the weight of the crank arm and it is both IP66 and IP68 water resistance certified. The power meter is both ANT+ and Bluetooth SMART compatible and can be used with the Pioneer Cycle Computer or your favorite head unit.

Installation takes about 10 minutes and involves simply swapping your current left-side crank arm for your new, power-equipped version. The Pioneer R8000 Power Meter is also easily upgradable. At any point, you can purchase and upgrade kit for your drive side crank arm and turn your Pioneer into a complete, dual-sided system.



12-Point Force Measurement

Pioneer power meters feature advanced precision and accuracy with force detection in 12 locations and almost 200 times per rotation.

Additional Data Metrics

Pioneer power meters provide access to HDPower Metrics when connected to Pioneer Cycle Computers.


The Pioneer R8000 is extremely lightweight, adding only 22 grams of weight to the crank arm.

Easy to Install

Installation is a breeze. Just swap it out for your current left-side crank arm and you’re ready to ride! Installation takes minutes…not hours.

ANT+ & Bluetooth SMART

The Pioneer R8000 transmits uses both ANT+ and Bluetooth SMART. This makes it compatible with any bicycle computer, smart phone or tablet.

Cyclo-Sphere Control App

The new app features an easy-to-use interface and allows for simple installation and set-up of your power meter functions.


Available crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm



The Pioneer Ultegra R8000 Power Meter is compatible with all Shimano Hollowtech II road cranks.


In the Box

  • Pioneer Shimano Ultegra R8000 Power Meter
  • Quick Start guide


Pioneer Shimano Ultegra R8000 Specs

NamePioneer Shimano Ultegra R8000
Bike TypeRoad
Location of Power MeasurementCrank Arm
Left or Both Legs MeasuredLeft only
Independent Left/Right MeasurementNA
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 2.0%
Weight22 grams (added weight)
Battery TypeCR2032
Battery Life180 hours
Method of Cadence MeasurementAccelerometer or Magnet
Warranty2 years


3 reviews for Pioneer Shimano Ultegra R8000 Power Meter

  1. Avatar


    The absolute best upgrade ever. I have used this power meter since January. Since then, no ride has been meaningless and the Pioneer PM has made me many PRs and KOMs. If I make more money, I will order the right side PM additionally.

    • Power Meter City

      Power Meter City

      Hi and thanks for the review! Glad you are enjoying your Pioneer R8000. These left side arms making getting started with power really easy. Keep up the nice work with the PRs and KOMs!

  2. Avatar

    Brad (verified owner)

    Pioneer power meter delivered quickly and up and running without an issue. Pioneer’s documentation could be clearer however. I bought the gen 3 model to get access to the cycling dynamics data on my phone. What took a while to figure out is that the power meter has 2 modes – one that can send data to a garmin head unit and a different one that sends data to the phone. You need to use the phone app to switch modes. A magnet calibration is also required and can only be done in the second mode.

    • Power Meter City

      Power Meter City

      Hi Brad. Thanks for leaving us a review on your Pioneer R8000. We’re glad you got the ins and outs figured out and we are here if you need us!

  3. Avatar

    Tim O’Brien (verified owner)

    This is a legit PM. I have tried a number of other PMs that didn’t work so well. This Pioneer works. It’s smooth. It doesn’t give problems. I don’t find myself subconsciously pedaling harder with my left leg. It can be found quickly by the Garmin. It doesn’t drop out. It just works. Only thing I noticed was that when you replace the CR2032 battery, you need to use the exact same brand of battery that it came with. I tried brand new Sony and Energizer batteries. They did not work. The unit shipped with a Panasonic. I purchased more Panasonic batteries, and they work. Overall I am happy with the PM because it works. Sounds simplistic. But sometimes simple is the best. I would give 5 stars if my unit accepted any CR2032 battery. But since it only accepts Panasonic, I have given 4 stars.

    • Power Meter City

      Power Meter City

      Hi Tim. Thanks for leaving us a review on your Pioneer R8000 and we’re glad to know it’s working so nicely. The Panasonic thing is a bit strange…we’re going to have to do some testing there as battery type should not matter like that as the voltage is the same regardless the brand. We will let you know what we find. Thanks again!

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