Wheels & Tyres

Power meter wheels guide

Category: Wheels & Tyres

Power meter wheels buying guide

Power meters are sophisticated training tools used by top-end competitive riders to measure and record their power output (in watts). More specifically, ‘direct force’ power meters are units that measure force via an instrument called a strain gauge.

This is recorded and analysed and feeds into the overall dataset which informs the training programme/training goals set out for a pro or semi-pro athlete by their coaching staff or themselves.

Power meter wheels feature a power meter rear hub (with an inbuilt strain gauge to measure torque applied) laced into a factory wheelset, typically with race-ready deep-section carbon rims and aero spokes.


Power meter wheels buying guide

A power meter wheel or wheelset is a significant investment, and one usually undertaken by elite-level riders, either professional or competitive amateur. For the majority of recreational riders plenty of training data can be gleaned from your bike computer or heart rate monitor, so if considering a power meter hub, ensure that you will have occasion to make use of the data it provides.

Your rear wheel’s power meter hub records power output in watts and transmits this data (via a wireless data protocol such as ANT+ or Bluetooth) to a ‘head unit’ – e.g. a compatible bike computer, a smartphone app or a dedicated device bundled with the meter.

This data can be monitored in real time for training purposes (so that riders know when they are exceeding or underperforming according to the power thresholds set out in their training programme) as well as being recorded for later analysis via PC or app.

Key features:
Some of the key features to look for when considering a power meter wheel or wheelset are:

– Power (current, average, max.): Your total power output, measured and transmitted the head unit. Every power meter should have this feature (if it doesn’t, well it’s not a power meter!)

– ANT + support: Support for the ANT+ wireless protocol enables the meter to be used in conjunction with a huge range of head units on the market

– Energy expenditure: Measured in total kjoules.

Power meters may also offer information on other common training metrics including heart rate (current, average), cadence (current, average), speed (current, average, max.) and ride time.

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