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PowerTap G3 Hub Power Meter

Josh Matthew July 24, 2020
4.67 out of 5 based on 3 customer ratings
(3 customer reviews)


One of the most respected and trusted power meters

Clear selection


PowerTap G3 Hub Power Meter

PowerTap is known for their hub-based power meters which have been on the market for close to 20 years and have a reputation of being reliable, accurate and trustworthy. The company is currently on their third generation of power meter hub, the PowerTap G3 Hub Power Meter. The G3 Hub delivers +/- 1.5% accuracy, features ANT+ and Bluetooth SMART and transmits power, speed and cadence data. You can purchase a stand-alone hub (pictured here), or one that is pre-built into a completed wheel set, which makes installation a breeze.



Priced Right

At $499, the G3 offers accuracy, durability, ANT+ and Bluetooth SMART – all from an established power meter manufacture with a reputation of making top-notch products.

Easy to Use

In typical PowerTap fashion, the G3 Hub is easy to use. Spin the cranks to wake it up, perform a quick zero and you’re ready to go!

ANT+ and Bluetooth SMART

The PowerTap G3 Hub is both ANT+ and Bluetooth SMART compatible. This means you can use it with your favorite cycling computer or a smartphone.

Only Hub-Based Power Meter

PowerTap is the only manufacture of a hub-based power meter – so the choice is easy when looking for hubs.


The PowerTap G3 Hub is available in the following hole count options: 24 hole | 28 hole | 32 hole



The PowerTap G3 is compatible with Shimano/SRAM or Campagnolo.

Note that for Campy compatibility, you need to also purchase the PowerTap Freehub Body Kit for Campy.


In the Box

  • PowerTap G3 Hub Power Meter
  • Hub Cap Removal tool
  • Manual


PowerTap G3 Hub Power Meter Specs

NamePowerTap G3 Hub
Bike TypeRoad
Location of Power MeasurementRear hub
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementNo
InstallationMore involved (60 min. estimated)
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.5%
Weight325 grams
Axle15 mm alloy
Battery TypeCR2032
Battery Life200 hours
Method of Cadence MeasurementAccelerometer
Warranty2 years


3 reviews for PowerTap G3 Hub Power Meter

  1. Avatar


    Awesome deal. Great power meter. This is my 2nd hub. Free shipping, good customer service. They had it in stock. Thank you

    • Power Meter City

      Power Meter City

      Allen, it’s your 2nd hub for a reason…they’re great power meters! Thank you for using Power Meter City.

  2. Avatar

    Angus Voo Lok Hyen

    The Powertap G3 hub serves perfectly to a rider introduced to power meter training for the 1st time. The price has gone down and more affordable now. I use it both for indoor and outdoor training. Trainer Road and my Garmin Edge detect and connect to the G3 hub flawlessly.
    Power meters are not easy to get in my country and I’m glad Power Meter City international free shipping make that possible. Also, the tons of power meter information and guide from this website has no equal.

    • Power Meter City

      Power Meter City

      Angus, thank you for your business. If you have any questions or need any help with your G3, just let us know! Ride safe.

  3. Avatar

    Patrick Carroll (verified owner)

    This is my first power meter and it’s super easy to use. I was worried about data overload and about losing the forest for the trees and becoming robotic to the analysis. So far so good. It connected to the Garmin basically automatically and good to go. It auto-calibrates when you freewheel so no messing with the head unit. The freehub, though… is a little on the obnoxious side but it encourages pedaling. I didn’t get hung up on the cons of a hub meter – I love that it’s balanced. One-legged sensors would bother me like one ear bud. G3 is good.

    • Power Meter City

      Power Meter City

      Hi Patrick! Good choice for your first power meter! We hope you continue to enjoy them and please let us know if there is anything else we can do!

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