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POWERTAP Hub rear G3 Shimano 325g

  • Availability: 1-3 days
  • Item no.: 12920
  • Product weight: 325g
  • Category:
  • Our price : 727,50 €
  • including 19% VAT., no shipping costs
  • List Price: 799,00 €
  • You save 9%, that is 71,50 €
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  • Hole Number


POWERTAP Hub rear Shimano G3

The lightest Powertapnabe and thus the lightest power measuring system of the world. With only 325 grams, it weighs only slightly more than conventional hubs and thus to use even for the long, hard race. A new development is the Powertap hub with a wider flange and a 15 mm axle for more rigidity and a lower hub diameter for less inertia.

The rear hub for everyone who wants to know it exactly: heart rate, cadence, power consumption and performance are just a few of the many measured variables of this system. The evaluation can be performed in real time at the Joule display or later on PC. In order to optimize their training to the last detail.

The main element of Powertapnabe are strain gauges inside the hub, which are glued to a part of the hub. When pedaling, the hub component deforms minimal (at the microscopic level) and the conductivity of the expansion elements is changing - from the performance is derived.

Powertap the only power measuring system is that measures the performance of the hub. This has the great advantage that it can be easily used on multiple wheels. Powertap provides access to real-time performance measurement with an accuracy of + / - 1.5%.

Note: Powertap uses the transmission system ANT + with the result that they are not tied to the computer "Joule" from Powertap. It can all devices that support ANT + are used with the hub (eg Garmin Edge 500 Garmin Edge 800, O-SYNCE navi2Coach).


driving time
Average speed
Training Stress Score (TSS)
power consumption
Performance (current, average, maximum)
Heart rate (current, average, maximum)
Cadence (current, average, maximum)
new electronics for fast and easy service of the hub (electronics is located in the hub cap)

Technical specifications:

Dimension: 130mm
Material: Aluminum
Connection: Wireless 2.4GHz ANT + wireless data transmission (also smartphone / Garmin / O SYNCE possible)
Count: 20, 24, 28, 32
Freewheel: Shimano | SRAM 11-speed compatible
Required battery: CR 2032
Color: Black

Weight: 325 g (hub)

flange geometry:

Spoke hole diameter: 2.5 mm
Spoke bolt circle diameter left: 57 mm
Spoke bolt circle diameter on the right: 57 mm
Flange distance: 55.4 mm
Flange left: 38 mm
Flange right: 17.4 mm

Delivery: Powertap G3 rear hub

Please follow the instructions for battery regulation

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