PowerTap

GS 24 Hole Straight Pull Hub w/ DT Swiss Internals

The "S" in the title stands for "straight-pull" and as you would expect, the spokes on the hub are indeed straight-pull. To that end, PowerTap worked with DT Swiss to completely redesign the hub body. Although the electronics are identical to the G3 hub, and the caps are interchangeable, the body itself looks completely different. The idea behind the hub was to up the ante in durability and performance. The GS series is not a replacement for the G3, nor is it the next iteration; which is why it's not called the G4. The bodies are DT Swiss' 240 straight-pull shells and come with DT Swiss bearings for an even smoother riding wheel.

Like the G3, the electronics are built into the end cap. This means that if you have wheel-based power reading problems, you're able to send just the end back rather than your whole wheel. Additionally, it is powered by a single CR2032 watch battery, which is easier to source than the two 357 batteries in older hubs. It lasts for about 300 hours of riding.

The GS features an ANT+ transmitter so that any compatible head unit is able to read the metrics. The "torque tube" design of the hub features eight strain gauges that yield power measurements within +/- 1.5% accuracy.

The GS 24 Hole Straight Pull Hub w/ DT Swiss Internals comes in Black. It is available with either a Shimano/SRAM or Campagnolo freehub. Please note that it does not include a skewer.