If you race, you know it's all about the power. All. About. Power. With the Powertap GS Hub measuring the power output you produce through your back wheel, you can rest assured that you really couldn't be getting more accurate numbers any other way.
And really, with DT Swiss internals including that company's Ratchet System™ technology aboard, you can also be secure in knowing that this is a superior piece of kit. You might take a glance at your fancy race wheels, because there's a chance this hub is now part of them!
Architecturally with the GS, we're talking press fit assembly with contact-free seals, an exchangeable rotor body, straight-pull spoke technology, and PowerTap's +/- 1.5 percent accuracy. This hub works with Shimano/SRAM, and is 9, 10 and 11 speed compatible.
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