Powertap G3 Shimano Hub


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The G3’s design allows for a simple, straight-forward way to measure power. By mounting the strain gauges in an area where external forces, such as spoken tension, cannot impact power measurement, the PowerTap G3 is able to deliver +/- 1.5% accuracy ride after ride. More than just a powermeter, The G3 delivers speed, cadence and power with pin-point accuracy all in one product. And its ability to be easily switched between bikes means you’ll never miss a watt.

Available in 20-, 24-, 28- and 32-hole count.
Weighs a mere 325g.
Simplest way to measure power.

Additional information

Weight 3 lbs
Dimensions 10 × 10 × 10 in
G3 Hub

G3 Hub 20 Hole Shimano, G3 Hub 24 Hole Shimano, G3 Hub 28 Hole Shimano, G3 Hub 32 Hole Shimano