New stages power meter

New stages power meter DEFAULT

 

STAGES CYCLING

Stages Cycling offers riders of all cycling disciplines and fitness level the essential training tools for precise, power-based training. Regardless if you are into triathlon, mountain bike, road bike or enduro – the Stages Power meter and Stages Dash are one of the most compatible training tools on the market.

The Stages Powermeter is available for all current alloy and carbon crank models from Shimano, SRAM, FSA, Cannondale and Campagnolo and impresses with its low additional weight of only 15 grams. With an accuracy of +/ %, an integrated accelerometer for measuring cadence and an active temperature compensation as standard function, the Stages Powermeter also impresses with its simple handling. For Shimano models you can also choose between a single-sided or dual-sided power measurement system. Via Bluetooth Smart and ANT+, the Stages Power can be connected to all common head units (Garmin, Polar, Sigma, Suunto, Wahoo, and others) as well as to smartphones in seconds.

The bike computer Stages Dash, in combination with the training platform Stages Link, offers almost limitless possibilities for training analysis and training control. Tailor-made training plans can be uploaded to Stages Dash, display settings can be adapted individually to personal preferences and target and actual metrics can be compared. 

 

Sours: https://www.stagescycling.eu/

There are a few easy things you can try that usually fix this issue.

For left crank arm power meters

Please confirm that the positive battery contact is not bent downwards from the correct position, which would prevent it from contacting the positive terminal of the battery. If needed, please use your fingernail to bend it back to its original position as shown in the photo below:

Open battery compartment on Stages left side power meter

If the positive terminal is in place, we can try a hard reset of the meter to see if we can get it to pair back up. Using the rounded edge of the battery, bridge to the positive and negative terminals for around 20 seconds. This will short circuit the board and should wake up the meter. Below is an example of the hard reset being performed.

Resetting Stages left side power meter with coin cell battery

Once you have performed the hard reset, please install a brand new battery and see if you are able to pair with your head unit or smartphone via the StagesPower app.

For right crank arm power meters

Please confirm that the positive battery contact is not bent downwards from the correct position, which would prevent it from contacting the positive terminal of the battery. If needed, please use your fingernail to bend it back to its original position as shown in the photo below:

Open battery compartment on Stages right side power meter

If the positive terminal is in place, we can try a hard reset of the meter to see if we can get it to pair back up. Using the rounded edge of the battery, bridge to the positive and negative terminals for around 20 seconds. This will short circuit the board and should wake up the meter. Below is an example of the hard reset being performed.

Resetting Stages left side power meter with coin cell battery

Once you have performed the hard reset, please install a brand new battery and see if you are able to pair with your head unit or smartphone via the StagesPower app.

Sours: https://powermetercity.com/faq/i-cant-get-my-brand-new-stages-power-meter-to-show-power-what-should-i-do/
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The new Gen 3 single-sided Stages Power L meter is built on to a non-drive-side Shimano Ultegra R crank arm and is compatible with all Shimano Hollowtech II road drivetrains.

Temporarily Sold Out Factory Install Available

Price:

Model Number: RL

Please select options before adding to cart

Description

Tour Proven. Stages Power has carried riders to three consecutive Tour de France victories, plus many more world and national championships. If you believe racing provides the world’s best product proving ground, then Stages Power is proven as the world’s best power meter.

Active Temperature Compensation as standard equipment. Consistency of measurement is the most important feature of a power meter. Stages Power was the first meter to make temperature compensation an automatic process ensuring accurate readings no matter the environmental conditions.

Individual meter calibration for the most accurate results. Stages Power meters are calibrated individually to ensure a +/- % accuracy level. Individual calibration means that you can trust the data produced by our system.


Additional features:
  • ± % accuracy in all conditions
  • Active temperature compensation
  • Accelerometer based cadence measurement 
  • Wirelessly upgradable firmware
  • LED indicator displays battery level at start up (with no need for connect to an app) and confirms successful zero reset
  • Updated accelerometer and addition of gyroscope for improved cadence resolution
  • Upgraded BLE and ANT+ radios offer a 6X improvement of data transmission strength

Specifications

  • Accuracy: ± %
  • Power meter housing: low profile design, with robust door interface
  • Weight: Only adds 15g to base crank arm
  • Battery Life: + hours (coin cell: CR) when used as a single sided meter
  • Power range (Watts): 0 to
  • Cadence range (rpm):
  • Water resistance rating: IPX7
Sizing Options:
  • Lengths: mm, mm, mm, mm

Compatibility

This Shimano Ultegra R Stages Power meter is compatible with all Shimano Hollowtech II road drivetrains. 

Frame Compatibility:  Most frames, see fit guide in our Support section

Device Compatibility: ANT+, Bluetooth Smart Ready 

Software Compatibility: Stages Link, Training Peaks, Strava, Garmin Training Center and others

In The Box

  • Power Meter
  • High quality CR coin cell battery
  • Lifetime access to Stages Link for power meter management and firmware upgrades.
  • 2 months free access to Stages Link premium training and coaching features.
  • Product Identification Card with Serial Number and ANT+ I.D. Number.

Return Policy

Purchase the wrong item? Or simply change your mind? Stages Cycling is happy to accept returns within 14 days of the original date of receipt. Items must be in new condition, purchased directly from Stages Cycling, and in the original packaging. If you have any questions regarding a return or need help ordering the correct product please contact us at [email protected]
*For items purchased from an Authorized Stages Dealer please contact the dealer regarding their return policy.

Tour Proven. Stages Power has carried riders to three consecutive Tour de France victories, plus many more world and national championships. If you believe racing provides the world’s best product proving ground, then Stages Power is proven as the world’s best power meter.

Active Temperature Compensation as standard equipment. Consistency of measurement is the most important feature of a power meter. Stages Power was the first meter to make temperature compensation an automatic process ensuring accurate readings no matter the environmental conditions.

Individual meter calibration for the most accurate results. Stages Power meters are calibrated individually to ensure a +/- % accuracy level. Individual calibration means that you can trust the data produced by our system.


Additional features:
  • ± % accuracy in all conditions
  • Active temperature compensation
  • Accelerometer based cadence measurement 
  • Wirelessly upgradable firmware
  • LED indicator displays battery level at start up (with no need for connect to an app) and confirms successful zero reset
  • Updated accelerometer and addition of gyroscope for improved cadence resolution
  • Upgraded BLE and ANT+ radios offer a 6X improvement of data transmission strength
  • Accuracy: ± %
  • Power meter housing: low profile design, with robust door interface
  • Weight: Only adds 15g to base crank arm
  • Battery Life: + hours (coin cell: CR) when used as a single sided meter
  • Power range (Watts): 0 to
  • Cadence range (rpm):
  • Water resistance rating: IPX7
Sizing Options:
  • Lengths: mm, mm, mm, mm

This Shimano Ultegra R Stages Power meter is compatible with all Shimano Hollowtech II road drivetrains. 

Frame Compatibility:  Most frames, see fit guide in our Support section

Device Compatibility: ANT+, Bluetooth Smart Ready 

Software Compatibility: Stages Link, Training Peaks, Strava, Garmin Training Center and others

  • Power Meter
  • High quality CR coin cell battery
  • Lifetime access to Stages Link for power meter management and firmware upgrades.
  • 2 months free access to Stages Link premium training and coaching features.
  • Product Identification Card with Serial Number and ANT+ I.D. Number.

Purchase the wrong item? Or simply change your mind? Stages Cycling is happy to accept returns within 14 days of the original date of receipt. Items must be in new condition, purchased directly from Stages Cycling, and in the original packaging. If you have any questions regarding a return or need help ordering the correct product please contact us at [email protected]
*For items purchased from an Authorized Stages Dealer please contact the dealer regarding their return policy.

Sours: https://store.stagescycling.com/STAGES-POWER-L-ULTEGRA-R

Stages Power Meters

General Information:

Installation

Installation of Stages left crank arms simply involves removing your current crank arm and installing the Stages in its place. Total installation time is usually less than 5 minutes.

Complete Stages cranksets take a bit more work as you have to swap out your entire crankset. However assuming you have insured compatibility with your bike frame &#; it&#;s pretty simple.

Weight

Stages power meters are one of the lightest available. The sensors add just 20 grams of weight to the crank arm, the equivalent of about 20 paperclips. If you opt for a dual-sided crankset, you would be adding about 40 grams, as these units have a power sensor on both the left and right crank arms.

Power Measurement

Stages left side only crank arms measure left leg power and double the value to calculate total power. This is how all single-sided power meters work. Assuming you do not have a large leg imbalance (in terms of power), this is an accurate way to measure power.

Complete Stages cranksets such as the Shimano Ultegra R and DURA-ACE , measure power from both legs. They are also able to determine independent left/right power.

Special Features

One of the great things about Stages power meters is their broad selection. They make a left side crank arm for almost any crankset. In addition, with models starting at $, they are one of the most affordable, ready to ride direct force power meters available. They are also extremely lightweight. These power meters only add about 20 grams of weight to your crankset.

Batteries

Stages power meters use CR batteries. CR batteries are cheap and easy to find. Battery life is approximately hours, quite good for a battery of this type.

Communication Protocol

These power meters transmit data via both the ANT+ and Bluetooth SMART wireless protocols. This means they are compatible with any bicycle computer, smart phone or tablet. It also means they can be easily connected with popular training apps such as Zwift.

Accuracy

All Stages power meters are accurate to within +/- %. This is in-line with most power meters on the market.

Cadence Detection

Cadence is measured using an accelerometer. An accelerometer is an electronic device that is housed inside the power sensor and measures your pedaling rate.

Warranty

Stages offers a one-year warranty which covers the product from defects in material and workmanship. We note their warranty support is quite good should you have any issues with your power meter.

FAQ:

How does a Stages power meter work?

Stages Cycling bonds a strain gauge as well as a battery and some electronics onto the inside of the left- and/or right-side crank arm. A strain gauge is a tiny electronic device whose electrical resistance varies depending on how much resistance (strain) is put on them. In the case of a Stages crank arm for example, it measures how much your crank arm is flexing when you ride. The power meter converts this flex into a power or torque reading that is sent wirelessly to your handlebar mounted bike computer where you can view your power in real-time.

Will a Stages power meter fit my bike?

There are two parts to this question. The first is in regards to crankset compatibility. Stages makes a number of different power meters that fit on different cranks. You must be sure you purchase the correct power meter based on what crankset you have on your bicycle. Secondly, you need to make sure your frame can fit a crank-arm based power meter on your bike. This means you need to make sure there is the necessary clearance (10 mm) between the left crank arm and your chainstay &#; and that you don&#;t have a chainstay mounted rear brake. Please refer to the image below.

Image showing the clearance between the frame and left side power meter crank arm

Are Stages power meters accurate?

Yes. Stages units are accurate to within +/- %. The industry average for power meter accuracy is % to % so this is in-line with most power meters on the market.

How long does a Stages power meter battery last?

The battery on a Stages power meter will last for or more hours.

What head units does a Stages power meter work with?

You can use the Stages power meter with any ANT+ enabled head unit, as well as with a smart phone using Bluetooth SMART.

How do you change the battery on a Stages power meter?

You can change the battery on a Stages very easy. For left road and MTB crank arms, as well as for right MTB crank arms, there is a small, round battery door that pops off, exposing the CR battery. For right side road power meters, there is a small door that is removed by unscrewing two small screws. You can change a Stages battery in only a couple of minutes.

Does a Stages power meter measure speed?

No. A Stages power meter measures both power and cadence. Speed is measured by the GPS in your bicycle computer. You can also choose to add a speed sensor to your bike should you wish.

Read More

Sours: https://powermetercity.com/product-brand/stages-cycling/

Power meter stages new

Stages Further Lowers Power Meter Pricing to $

StagesPower2

No matter how you feel about single-sided power meters, there’s zero denying that Stages and their timing of the decade deal with then Team Sky, dramatically increased power meter consumption. In the rising tide lifts all boats department, they took with them not just (at the time) the budget end of the power meter spectrum, but also the mid and high end too. Not to mention aiding in the smart trainer realm by making it easier for people to train on the same power numbers inside and out.

These days of course, Stages is far more than just left-only power meters. They’ve got dual sided ones, as well as their Stages Dash lineup of GPS bike computers, and sometime in the next month or two – also their indoor smart bike. All of which ignores the bulk of their business in selling indoor non-smart bikes to gyms.

The point being, that despite the long term trend probably (most definitely) shifting away from companies like Stages making add-on power meters (and instead having them just built in the cranks), that day isn’t anytime soon. And today’s permanent pricing shift is basically Stages saying they aren’t going into the sunset quietly. And there’s no reason to – they’re likely the most used power meter company out there.

Today’s announcement brings the price of a Stages single-sided power meter to $ from $, and the dual-sided Stages LR units from $ down to $ for the Ultegra version.

● Shimano R Power L $USD/ £/ €/ $AUD
● Shimano Ultegra R $USD/ £/ €/ $AUD
● Carbon BB30, GXP Road, and GXP MTB L $USD/ £/ €/ $AUD
● Shimano Ultegra R Power LR $USD/ £/ €/ $AUD
● Shimano DuraAce R Power LR $USD/ £/ €/ $AUD

Now one might think that Stages is trying to take money out of the hands of the Favero, Garmin, SRAM, and others of the world. And certainly, that’s true. But I suspect the goal here is actually also protecting against the less expensive and less well known brands that have crept in over the past couple of years. Companies like Avio, Tempo, and Magene. All of these companies are shipping units today, though some of them have some sort of ‘catch’. Be it limited availability to a specific region, no Bluetooth Smart support, or questionable technical support in a country half a globe away. Some of them *are* accurate though, and some of them might actually make a lot of sense for your needs.

Stages is basically pulling a ‘Men in Black’, waving their hands, and saying ‘You didn’t see those units’. Because at $ – it’s hard to argue with that pricing or a well established company.

The units that get the price reduction are all Gen3 models, which has overwhelmingly seemed to have resolved all the waterproof sealing and signal issues of years past. These have dual ANT+/Bluetooth Smart, and use standard CR coin cell batteries.

StagesLRDual

However, on the flip side, the Stages LR units are still Shimano R/R crankset based, which means they’re still subject to some of the variability that all power meter manufacturers are struggling with, specifically on the right side of that crankset (which is why it doesn’t terribly impact the single-sided left variants). Even Shimano themselves has struggled – perhaps more than others – with instability of this crank arm design for attaching power meters to it. Shane Miller and Keith Wakeham have talked at length about this.

Still, I think the deal here is all about the single-sided crank arms. Now, I’ve discussed my concerns with single-sided crank arms for years (which simply double the left leg power to give total power). Most people aren’t actually balanced (which is fine), but more importantly, many people actually have variation in their power balance. You shift your leg balance as you fatigue, or even at certain levels. My power balance shifts the more wattage I put out – it’s different at w vs vs even w.

But, I’ve also noted that training with a power meter that’s a few percent variable is definitely better than no power meter at all. If you can afford a full power or dual-sided power meter – great! But, if you can’t, or if this is perhaps for a bike that having perfection in your numbers isn’t as important, then that makes total sense. As always, do your research. I’ve written boatloads on this in the past.

(I know, I owe you a …err… power meter buyers guide, but honestly, nothing of note happened in in the power meter world. In fact, today’s announcement is the biggest shipping-focused power meter news of the last 12 months.)

With that – I’m back to CES related goodness. Stay tuned to the site, Twitter, and Instagram!

Sours: https://www.dcrainmaker.com//01/stages-further-lowers-power-meter-pricing-tohtml
How To: Replace Stages Power Meter battery
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Similar news:

Best power meters: Consistent power data for both indoor and real-world cycling

The best power meters will take the guesswork out of your training and allow you to accurately prepare for races. A power meter that doesn't perform consistently and accurately can throw off a session, causing inadequate training stimulus and subsequently, sub-optimal training. Worse, an under-reading power meter can cause poor pacing strategy in races or FTP testing and longer-term, could lead to overtraining.

The humble power meter has been around in the pro peloton for over 30 years but has only recently become de rigueur among amateur riders wanting to train more clinically and race more effectively, and as data becomes more widely used, the demand for accuracy and consistency is higher than ever. 

The trackable, quantifiable and comparable nature of data means the best power meters take the guesswork out of your training and allow you to accurately track your performance by way of power output, cadence, and even kilojoule expenditure. 

Over the past several years, power meters have become more affordable thanks to advances in technology and the introduction of a host of new competitors to the fray. There are several types of power meter configurations available which measure power at the rear hub, crank spider, crank arms, bottom bracket or pedals, but choosing the right one comes down to four factors: price, compatibility, accuracy and weight.

Below we explain what to look for in a power meter, along with our roundup of the best.

Skip to: How to choose a power meter

Best power meters

Quarq DZero

Aesthetically, and mechanically, one of the best units on the market

Weight: g, BCD (spider only) | Battery life: hours | Battery type: CR | Measurement: Dual-sided | Type: Spider/chainring

High accuracy

Great aesthetics

Installation requires tools and know-how

High price

Quarq’s latest spider-based masterpiece, the DZero, can be ordered as an individual spider or as a complete crankset in either aluminium or carbon. Not only are the strain gauges located within the spider but it also benefits from a built-in accelerometer to simplify function and boost accuracy — with a variance of only per cent. The DZero power meter is compatible with all bottom bracket types and BCD configurations and there’s even a version for Shimano-specific chainrings called DFour. The DZero’s biggest selling point is its ability to measure power from both the left and right leg which helps improve pedal efficiency and power balance.

Stages Power LR Ultegra R

Big data for those with a Shimano groupset

Weight: 35g | Battery life: + hours | Battery type: CR | Measurement: Dual-sided | Type: Crank, mm, mm, mm, mm

Lightweight

Improved radio signal

Installation requires tools and know-how

Shimano-only for now (single-sided Stages power meters available for Campagnolo, SRAM, Cannondale and others)

Stages Cycling made a name for itself when it dropped the single-leg power meter concept at an amazingly affordable price just a few years ago. Known for continually pushing the boundaries in terms of weight and performance, the Colorado-based firm has taken things up a notch with the introduction of the Stages LR, a dual-sided power meter with generation 3 internals, a boosted ANT+ and Bluetooth signal (6 times stronger than before) and accuracy to a maximum deviation of only per cent. Available in three Shimano-only options, Dura-Ace , Ultegra R and R, it adds just 35g to the crankset. Even better, Stages introduced a restructuring of its product pricing in early , to the benefit of global customers. 

Rotor INspider power meter

The modular design of Rotor's INspider power meter makes it a sensible investment for the serious cyclist

Weight: g | Battery life: hours | Battery type: Rechargeable | Measurement: Dual-sided | Type: Spider

Can be swapped between multiple bikes

Comparatively light at g

Accurate to %

Reliable data harvesting

Impressive battery life

A little on the costly side

The Rotor INspider power meter offers multi-discipline compatibility, and can be seamlessly switched between bikes, granted they all use a Rotor OCP-splined (Optimum Chainring Position) crankset. In terms of compatibility the INspider will play nicely with all crank arm lengths (mm), axle standards (24 and 30mm) and carbon crank arms, not to mention both 1x and 2x chainring configurations. 

The INspider uses two paired sets of opposing radial strain gauges which independently measure power at the left and right leg. The upshot of a power meter of this nature is the way in which it harvests data. It can capture up to  data points per second, trumping the crank-based alternatives that measure power at one side - no multiplying by two here. 

In terms of accuracy, Rotor says there's no real benchmark for comparisons but claims a maximum deviation of only per cent. 

SRM Origin

The holy grail of power meters

Weight: from g | Battery life: hours (standard), hours (rechargeable) | Battery type: Rechargeable or Standard | Measurement: Dual-sided | Type: Spider, BCD asymmetric

99% accuracy level

Rechargeable battery

3-year warranty

Rich lineage 

High price

Certain models come up heavy

SRM has always been considered the benchmark when it comes to power-meter accuracy - it revolutionised the industry and brought number-crunching to the pro peloton. After producing primarily spider-based power meters for the last three decades, SRM recently launched a more compatible three-piece power meter crank system called the Origin which can accommodate a host of frame/bottom bracket setups.

The SRM Origin power meter comprises crank arms, a spider ( or BCD) and spindle (BB30 and 24mm), and is available in both carbon or aluminium, the latter of which has crank length options of mm. The carbon version was developed alongside French frame and pedal brand, Look, with a Trilobe pedal insert allowing for adjustable crank lengths of , , and mm. SRM claims reliable accuracy levels of 99 per cent.

Favero Assioma Duo pedals

Accurate and affordable for multiple bike owners

Weight: g (actual) | Battery life: 50+ hours | Battery type: Rechargeable | Measurement: Dual-sided | Type: Pedal

Super lightweight

Great value price

99% accuracy

Not as well known as rivals

Favero Electronics may be a newcomer to the power-meter realm but the Italian manufacturer has taken the fight to PowerTap and Garmin by offering a lighter, cheaper and more accurate power pedal - the Assioma. In fact, they weigh just g per pedal, which is significantly less than the Garmin Vectors and PowerTap P2s (g per pedal).

It's a tidy-looking package - all the sensors and strain gauges are located in a housing next to the pedal body, which measures directly at each axle. Not only does this neat little design cue ensure the Assiomas look like an ordinary pedal and not as chunky and bulky as their rivals, but it also keeps the electronics from getting damaged by falls or impacts, meaning it's easier to maintain down the line. They're also IP67 certified.

Unlike other power meters that harvest data based on the angular velocity of the crank arm through each rotation, the Assioma uses an instantaneous angular velocity (IAV) measuring technique thanks to an on-board gyroscopic sensor. According to Favero, the IAV way of harvesting data is class-leading, with accuracy to a maximum deviation of only one per cent.

Favero Assioma DUO full review

4iiii Precision

The budget-friendly winner

Weight: 9g | Battery life: + hours | Battery type: CR | Measurement: Single-sided, dual-sided | Type: Crank, mm, mm, mm, mm

99% accuracy

Affordable pricing

Light weight

Easy to install

Clearance issues on certain frames

Weighing in at a scant 9g, the 4iiii Precision power meter represents the pinnacle of lightweight options on the market. Available as a crank-based left-side-only, or dual-sided unit the company claims it is 99 per cent accurate. The product portfolio comprises just three off-the-shelf options in the form of Shimano Dura-Ace, Ultegra and , but you can send your own crank directly to 4iiii Innovations to have a power pod retrofitted, something the company calls a ‘Factory Install’. Prospective buyers should be aware of compatibility issues pertaining to crank clearance at the chain-stays; 4iiii Innovations recommends checking this before ordering.

Power2Max NGeco

If you’re looking for a durable and reliable spider-based power meter, look no further

Weight: g BCD (spider only) | Battery life: hours | Battery type: CR | Measurement: Dual-sided | Type: Spider/chainring

Great price

Long battery life

Very durable

Isn't much of a looker

Quite heavy

Like Stages Cycling, Power2Max disrupted the industry by bringing power to the people at an affordable price. Owing to its spider-based anatomy, riders are able to choose from myriad crank options depending on budget, something that’s enabled the German company to gain immense traction and market share in a highly competitive space. Power2Max claims its NGeco unit is a dual-sided power meter although it calculates power at the spider and apportions the left/right ratio based on crank position. 

However, it does measure both pedal strokes independently, making it superior to those of the single-sided variety that collect data from the left side only.

PowerTap P2 pedals

Best for multiple bike owners

Weight: g (actual) | Battery life: 80 hours | Battery type: AAA | Measurement: Dual-sided | Type: Pedal

High accuracy

Dual-sided functionality

Compatible with all cranks

Heavy

Look cleat-compatible only

The PowerTap P2 pedals require no fancy tools for fitment and can be swapped effortlessly between bikes. Not only are they 34g lighter (g a pair) than before, they also boast a hour battery life improvement over their predecessor (80 hours in total). While they may not appeal to everyone in terms of visual clout (the black P1 pedals are far sexier-looking items) the P2 pedals are appreciably easy to clean and don’t hold much in the way of dirt or grit, regardless of weather conditions and terrain. What makes the them a safe bet is the company’s proven track record in terms of accuracy, durability and reliability. It also helps being owned by cycling industry heavyweight, SRAM. 

SRM X-Power pedals

Proven reliability clad in a smartly designed, robust package

Weight: g (g per pair, actual) | Battery life: 30 hours | Battery type: Rechargeable (lithium-ion) | Measurement: Dual-sided | Type: Pedal

Pedigree product

Lightweight considering application

Set-and-forget installation

Power meter accuracy

Zwift compatibility

Smartphone app

Dual-sided power

Pricey

These might not be road bike power meter pedals but they can double up for use on gravel and cyclo-cross bikes, so they're a worthy inclusion on this list. The SRM X-Power pedals represent a ground-up in-house development - the world's first off-road-specific power pedal offering if you will. As such SRM is looking to garner market share in what has become a highly competitive space with rivals such as Stages, Rotor, Power2Max and Quarq dominating the landscape.

The pedals use the tried-and-tested SPD design made popular by Shimano - but with an SRM twist. The colour spread - comprising anodised-lime-green, black or red - will also help those who obsess over colour matching bike equipment. Battery power comes in the form of a lithium-ion supply, with a run time of approximately 30 hours (standby power draw is per cent per day). The pedals are charged by way of a single-pin magnetic connector located on the wrench flats - the LED battery charge indicators will flash green once fully charged.

The set-and-forget nature and ease of the installation are truly impressive, and the splash of colour provides a striking alternative to the bland offerings currently on the market.

SRM X-Power pedals - first look

Garmin Rally RS power pedal

The complete power meter pedal system

Weight: g (Actual) | Battery life: hours | Battery type: LR44/SR44 (x4) or CR1/3N (x2) | Measurement: Dual-sided | Type: Pedal

Upgradeable

Durable

Replaceable battery

More expensive than the competition

The Garmin Rally pedals are a system of three pedal bodies with either single or dual power measurement. The range's naming structure is made up of two letters, RK, RS, or XC, followed by the number or  

An RK box means you've got a road pedal with a Look Keo compatible cleat. An RS designation means a road pedal using an SPD-SL cleat. The last option is XC and that gets you a dual-sided, two-bolt, SPD-compatible pedal. Next to the letters, you will find either or meaning either single-sided power or double-sided power, respectively. 

The big talking point here is the parts that make the Rally pedals work as a power meter live in the spindle. The pedal bodies are interchangeable with an upgrade kit. Whatever you start with is irrelevant other than as a place to start. With that in mind, look at the pedal bodies and you can see the aesthetic design follows the function and the bulk is in the spindle. 

With a claimed accuracy of +/- 1 per cent, they're one of the most reliable power meter systems on the market.

Garmin Rally SPD and SPD SL pedal power meter review

How to choose the best power meter

As the name suggests, a power meter is a compact electronic device that calculates power by way of a strain gauge. The strain gauge transduces flex into electrical resistance based on how much strain or torque is applied and multiplies it by the angular velocity (cadence) to calculate power, which is measured in watts. Sounds complicated, right? Thankfully, your cycling computer does all the maths for you, processing the data it receives from the power meter via an ANT+ or Bluetooth connection. That said, not all power meters are created equal – the accuracy and reliability of each unit hinge around a number of complex parameters, the most pertinent being the quality of the materials used in its construction and number of strain gauges fitted. As you can imagine, manufacturing such a device is an intricate process which explains why these components cost as much as they do.

Power meters explained

It’s easy to get overwhelmed by the marketing jargon and complex specification sheets when shopping for a power meter. There are five distinct power meter types based on where it’s fitted to the bicycle, so it’s important to factor in compatibility before making a decision. (Most manufacturers have compatibility charts on their website).

Rear hub power meters

Hub-based power meters are some of the most affordable, reliable and compatible units available. PowerTap is the main protagonist in this segment and its G3 hub has earned a reputation for its hardy and bullet-proof nature. One of the many benefits of using a hub-based system is the convenience of swapping it between bikes. This has become somewhat more complex by new hub standards (quick release vs bolt-thru and disc vs rim), but assuming your wheel will fit both bikes, the power meter can go with it. 

Compared to other power meters, the location of a hub-based unit may result in marginally lower power readings owing to drivetrain losses.

Crank arm power meters

Stages Cycling brought affordability and reliability to the market with its left-side crank concept in , and made them cheaper still in Weighing just 20 grams it redefined the segment with a catalogue comprising a range of crank arms in both aluminium and carbon fibre guise. Since then, 4iiii Precision has jumped on the power bandwagon with its off-the-shelf, left-side Shimano crank arms (Power pods for other models can be retrofitted as a ‘factory installation’). Crank-based power meters are extremely light and affordable but be wary of frame clearance issues on older bikes.

If choosing a left-sided option, the only compatibility consideration you need is to ensure the crank will fit the spindle from the right-side, and that the crank length matches the right. 

If choosing a left-right option, you'll just need to ensure the crankset fits your bottom bracket standard. 

Bottom bracket power meters

The bottom bracket power meter is not as popular as other designs as it is more difficult to install and isn’t compatible with all bottom bracket systems. But the results don’t lie: Rotor claims its INpower units are per cent accurate (variance of 1 per cent). Another benefit is that the power meter’s innards, battery and electronics are housed within the bottom bracket for added protection and weight balance.

Pedal power meters

Not only are power pedals easy to swap between bikes but the plug-and-play nature nullifies the need for complex fitting procedures. Available in two distinct guises: single- or dual-sided, it’s the latter which can independently measure left-right balance as well as calculate pedal smoothness and efficiency. The only pitfall stems from the extra weight of the electronics, strain gauge and battery pack located within the pedal assembly. PowerTap, Look, Garmin and Favero are the chief players in this segment with little between them in terms of performance and reliability. 

They can even be swapped onto an indoor or gym bike for some Zwift action should you be away from home without a bike. 

Crank spider power meters

Spider-based power meters rose to prominence in the late s with SRM who pioneered the concept. Available in various shapes and sizes these power meters are compatible with most bottom bracket and chainring BCD patterns and can be purchased individually as a spider or complete chainset. Leading products here come from brands such as SRM, Quarq and Power2Max, each of which offers varying price points, weights and power-measuring functionality.

The compatibility here can be somewhat daunting, but manufacturers simplify things by offering spider-based power meters based upon the make-model of the crank you're using. The only thing to then consider is chainring BCD; you'll generally have 4- or 5- bolt configuration, and the bolt-circle-diameter will generally be written on your current chainrings. 

Aaron is Cyclingnews' tech editor. Born and raised in South Africa he completed his BA honours at the University of Cape Town before embarking on a career in journalism. As the former gear and digital editor of Bicycling magazine and associate editor of TopCar, he's been writing about bikes and anything with wheels for the past 16 years. A competitive racer and Stravaholic, he’s twice ridden the Cape Epic and completed the Haute Route Alps. When not riding, racing or testing bicycles in and around the UK's Surrey Hills where he now lives, he's writing about them for Cyclingnews and Bike Perfect. 

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Rides: Cannondale Supersix Evo Dura Ace Rim, Cannondale Supersix Evo Disc, Trek Procaliber MTB 

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