Buyer’s guide: power meters

All you need to know about buying a power meter

SRM is the original power meter manufacturer, founded by engineer Ulrich Schoberer in 1986. Greg LeMond was among the first riders to train and race with power and, fast forward to 2014, Schoberer’s current device is often considered the ‘gold standard’, even if that crown has come under threat.

The system measures power via eight strain gauges in the crank spider and SRM say it’s the most accurate setup available, thanks in part to the PowerControl 7 computer (the new WiFi/GPS/Bluetooth-ready PowerControl 8 unit is due for release this summer) which can read data four times per second. SRM’s power meter transmits data via ANT+, so it can also be used with other compatible computers, including Garmin’s Edge range.

SRM has long been considered the ‘gold standard’ but the power meter market is more competitive than ever

SRM’s significant reputation means it comes with a significant price tag, with the power meter and cadence sensor available from £1,549, while complete systems start at £2,099.

Pros: ‘Gold standard’ accuracy, custom-made crankset, leaves wheel and pedal choice open
Cons: Eye-wateringly expensive, no left/right measurement, requires third part service centre to change battery (though claimed battery life is 3,000 hours)
Website: SRM

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