If you want to get the most out of your training, assess your cycling performance in greater detail or most importantly improve your performance, then a power meter is the piece of technology for you.

Power Meter FAQ

Weight: 25g (Powermeter pod only), 7.5g (Podiiiium left-side sensor), 9g (Precision left-side sensor)

4iiii power meters can come as a full chainset with a power meter on both sides or a left-hand crank arm only (including Shimano, Campagnolo, FSA, Cannondale and SRAM crank arms), which measures power output in one leg and extrapolates the data to measure the power in both legs. You can send your compatible crankset or crank arm to 4iiii to have a power meter installed. 4iiii are very competitively priced.

The power measurement accuracy is exceptional at just +/-1.0%.

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smartphone. Battery life for the Precision Power Meter is approximately 100+ hours (Coin CR2032 battery) and the Podiiiium is 60+ riding hours (rechargeable Lithium-ion battery). The Podiiiium and Precision power meters both have the same accuracy and low weight, the main difference being the type of battery the sensor requires.

Weight: 25g

The Avio PowerSense is one of the cheapest power meter units out there. It comes as a sensor only which means that it needs to be attached to your Shimano crank arm (with the use of the Avio PowerSense Home Fitting Kit). The power measurement accuracy is very good at just +/-2.0%.

Connection is via ANT+, which can connect to any compatible bike computer. Battery life is approximately 75+ hours (coin battery)

Weight: 303g pair + 66g (for Look cleats and hardware)

The Favero Assioma power meter pedals are based on the Look pedal system. The pedal parts are made by a pedal making company called Xpedo. They only weigh 151.5g per pedal (Including the battery). The power measurement accuracy is exceptional at just +/-1.0%. Adjustability is excellent with the spring tension system.

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smartphone. Battery life is approximately 50 hours (rechargeable lithium-ion battery). They are available as a single or dual system.

Weight: starting from 585g

FSA offers power meters as a full chainset. Spider-based power sensors provide total power output measurements of both legs, with left & right leg individually. They are Shimano 10/11 speed, SRAM 10/11 speed, FSA 11 speed and Campagnolo 10 speed compatible.

The power measurement accuracy is +/-2.0%.

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smartphone. Battery life is approximately 300+ hours (cr2450 coin battery).

Weight: 326g pair (RS200) + 70g for cleats (Shimano SPD-SL) and 320g pair (RK200) + 70g (for Look KEO cleats and hardware)

The Garmin Rally RS100 and RS200 are compatible with Shimano SPD-SL cleats (with the RS denoting SPD-SL), whilst the RK100 and RK200 are compatible with Look KEO cleats (with the RK denoting KEO). This makes the Garmin Rally range the first power meter pedal system to be Shimano SPD-SL cleat compatible. Garmin Vector 3 axles are compatible with new pedal body upgrades.

The number 100 or 200, following the RS or RK indicates whether the pedals are single-sided or dual-sided power meters. The Rally RS100 is a left single-sided power meter pedal, whilst the Rally RS200 is a dual-sided power meter pedal system. The RS100 can estimate power output from the right leg, however a dual sided power meter like the RS200 can provide much more accurate power data for each leg individually.

They area very light carbon fibre power meter pedals. The power measurement accuracy is exceptional at just +/-1.0%. Adjustability is excellent with the spring release tension system.

Connection is via Bluetooth or ANT+, which can connect to any compatible bike computer or smartphone. Battery life is up 120 hours (LR44 battery type). They are available as a single or dual system.

Weight: 316g pair + 66g (for Look cleats and hardware)

The third version of Garmin's power meter pedals which are based on the Look Pedal System. They area very light carbon fibre power meter pedals at only 158g per pedal. The power measurement accuracy is exceptional at just +/-1.0%. Adjustability is excellent with the spring tension system.

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smart phone. Battery life is up 120 hours (LR44 battery type). They are available as a single or dual system.

Weight: 310g pair + 66g (for Look cleats and hardware)

Look and SRM have partnered to create a very light carbon fibre power meter pedal at only 155g per pedal. They share a similar design to and weigh only 25g more per pedal than the Look Keo 2 Max pedals. Adjustability is excellent with the spring tension system.

Connection is via Bluetooth Low Energy and ANT+, which can connect to any bike computer or smartphone. Battery life is 100 hours. They are available as a single or dual system.

Weight: 168g (BCD 130mm)

Power2Max offers a few versions of their spider/crankset power meters which are compatible with a huge amount of crankset brands. They are competitively priced.

The spider power meter measures power output in each leg separately, rather than estimating the power from one leg. The power measurement accuracy for the NGeco is exceptional at just +/-2.0% (upgradeable to +/-1.0%).

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smartphone. Battery life is approximately 300 hours (Coin CR2450 battery).

Weight: ~155g (Spider only)

Quarq offers spider/crankset power meters for SRAM, Shimano Dura-Ace 9100 and S-Works cranksets. The Quarq power meter is available as an upgrade to compatible cranksets or can come as a complete new crankset, making it more accessible.

The spider power meter measures power output in each leg separately, rather than estimating the power from one leg. The power measurement accuracy is exceptional at just +/-1.5%.

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smartphone. Battery life is approximately 200 hours (Coin CR2032 battery).

Weight: 398g pair + ~70g (for cleats and hardware)

The power measurement accuracy is exceptional at just +/-1.5%. Adjustability is excellent with the spring tension system.

Connection is via Bluetooth Low Energy and ANT+, which can connect to any bike computer or smart phone. Battery life is 80+ hours (AAA batteries).

Weight: 775g (596g crank arms only)

Rotor offers power meters as a full chainset with power measurement on both sides, a drive side only power meter and a spider power meter. The power meters can work with the most common bottom brackets standards (BB30 / PF30 / PF30 BBright / BB386 / BSA / ITA / BB).

The power meter electronics are hidden inside the bottom bracket spindle. The power measurement accuracy is +/-2.0%.

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smartphone. Battery life is approximately 250 hours (lithium-ion battery).

Weight: 70g

The Shimano Dura-Ace 9100 Power Meter comes as a full chainset with a power meter on both sides. It adds 70g to the full chainset. Shimano bought certain assets from Pioneer in early 2020 so we expect to see a few changes to the Shimano power meters in the years to come.

The power measurement accuracy is +/-2.0%.

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smartphone. Battery life is approximately 300+ hours (lithium-ion battery).

Weight: 640g with carbon crank arms (53-39t with 133mm spindle and axle screws) vs 626g for a full 53-39t Shimano Dura-Ace 9100 chainset without the SRM power meter.

SRM also offer power meters built into Campagnolo, Cannondale, Rotor, Specialized and SRAM cranksets. The only downside is the cost.

The crank arm of the SRM Origin Power Meter Crankset is made by Look Carbon and utilises Trilobe Technology, which allows one crank arm to function at three different set lengths; 170mm, 172.5mm or 175mm. The spindle and spider is interchangeable between compatible cranksets.

The power measurement accuracy is exceptional at just +/-1.0%.

Connection is via ANT+ which can connect to any bike computer or smartphone. Battery life is approximately 1400 hours (battery) and >100 hours (rechargeable)

Weight: 35g (per sensor)

Stages Power Meters can come as a full chainset with a power meter on both sides or a left-hand crank arm only (including Shimano, Campagnolo, FSA, Cannondale and SRAM crank arms), which measures power output in one leg and extrapolates the data to measure the power in both legs.

The Stages Gen 3 Power Meter only adds 35g to the crankset. The power measurement accuracy is exceptional at just +/-1.5%.

Connection is via Bluetooth and ANT+, which can connect to any bike computer or smartphone. Battery life is approximately 175+ hours (Coin CR2032 battery).

Weight: 65g (including PowerPod handlebar mount)

Velocomp offers three different versions of their power meters, starting at a very low price of $199USD.

The PowerPod has a GoPro attachment at the top of the unit as it needs to be positioned at the front of the bike. The PowerPod works by measuring the frontal wind force, elevation, speed, cadence, rider weight, accelerometer measurements and atmospheric pressure, which is then run through an algorithm to determine the power output for each leg. The only downside is that it doesn't work on indoor trainers.

There is an optional left-right PowerStroke software upgrade feature which allows you to analyze your entire pedal stroke in greater detail by measuring front-to-back, side-to-side and left/right wobble, to determine your pedaling efficiency and wasted watts.

The Velocomp has been thoroughly tested against some of the best power meters available and is deemed to be very accurate. The power measurement accuracy is good at +/-3.0%.

Connection is via ANT+ and BLE, which can connect to compatible bike computers. Battery life is approximately 20 hours (rechargeable internal battery).