Back when the only other choice was an SRM that required a mortgage, the early PowerTap hubs earned a big following because you could build a basic rear training wheel for a fraction of the price of the German cranks.
That’s still the case now, though there are now many more affordable meters to rival it.
As well as cheap training wheels, PowerTap offers complete race wheelsets, including exotic Enve rims, of the kind we rode and rated back in 2014.
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Related: PowerTap G3 power meter
We started this test with a G3 hub in a 45mm carbon clincher wheelset but it started reading low and then failed one day. Importer Paligap told us it was due a service after 100 hours of use, though the recommended interval is annual.
Consequently we then switched to a GS hub – exactly the same power meter but built into a hub with DT Swiss mechanicals and straight-pull spoke arrangement – and re-did some test rides to check parity.
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