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PowerTap G3 Rear Disc Hub

josh March 2, 2018


PowerTap G3 Rear Disc Hub: The world’s most popular and trusted power meter, with extra stopping power!

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About the PowerTap G3 Rear Disc Hub

Road, cross and even hybrid bikes are now decked out with the stopping power once only reserved for mountain bikes. As the demand continued to grow, so did the design. The PowerTap G3 Rear Disc Hub is lighter, smaller and stiffer than ever before. PowerTap took the original disc hub shell and shaved off 180 grams, aka: 30% of the weight, and incorporated a 6 pawl freehub for faster engagement and an even longer life. Ideal for bikes with a 160 mm rotor, the G3 Disc Hub can be used as 142×12 mm thru axle or 135 mm quick release for a wider range of compatibility.


PowerTap G3 Rear Disc Hub Options

The G3 Rear Disc Hub is available in the following hole count options to fit whatever wheel you are using: 24 hole, 28 hole



  • Freehub compatibility: Shimano/SRAM and XD
  • Comes compatible with 135 mm quick release or 142×12 mm thru axle options
  • Rotor size: 160 mm, the most common disc brake rotor


In the Box

  • PowerTap G3 Rear Disc Hub
  • Hub Cap Removal tool
  • Manual


NamePowerTap G3 Rear Disc Hub
Power Meter TypeRear hub
Type: GaugeStrain
Number of strain gaugesNA
Weight350 grams
Axle135 mm quick release and 142×12 mm thru axle
Hole Count24 and 28 hole options
Battery TypeCR2032
Battery Life200 hours
Left/Right Power MeasurementNo
Communication ProtocolBluetooth and ANT+
Claimed Accuracy+/- 1.5%
Q FactorNA


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