Information Density: 4iiii Innovations – Signal Evidence & AI Readability

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Unlock Your Potential

With a 4iiii Power Meter

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[H1]
Why Train
With Power

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[H2] Products

[H5] Power Meters

[H5] Heart Rate Monitor

[H5] Ride App

[H2] Athlete Reviews

Hannah Otto

[IMG: Photo of Hannah Otto]

“
With climbs lasting between 20 minutes to over an hour, my 4iiii power meter was an essential tool for pacing the 7+ hour day. I love the art of modulating my own effort while competing and pushing into new realms of possibility.
”

US XCM National Champion

Gwen Jorgensen

[IMG: Photo of Gwen Jorgensen]

“
The process to get these power meters installed was very easy, I just mailed in my current cranks and they installed the power meter, and mailed it back. My 4iiii has been extremely easy to use and accurate. The dual-sided power allows me to make sure I’m sitting even and pushing equal watts. Power is an essential way to measure my progress over time and have a metric to build off of.
”

Triathlon Olympic Champion and 2x World Champion

Cameron Jones

[IMG: Photo of Cameron Jones]

“
After identifying some power imbalances with my dual-sided pm last year, and addressing it in the gym, the stat I was most proud of was the near-perfect LR balance I achieved (49.9%/50.1%)
”

2025 Unbound Gravel & Life Time Grand Prix Overall Winner

Alex Dowsett

[IMG: Photo of Alex Dowsett]

“
I’ve always believed that data is only valuable if you know what to do with it. 4iiii power meters are trusted, accurate and built on an incredible heritage – and I’m excited to work with the team to help more riders get set up properly, understand the numbers, and use power to train with real purpose.
”

Former Hour Record Holder and WorldTour Pro turned Performance Analyst

[H2] Trending

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[IMG: PRECISION 3+ Left-Side Powermeter - Ride Ready]

[IMG: PRECISION 3+ Left-Side Powermeter - Ride Ready]

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Non-Drive Side
PRECISION 3+

Powermeter

Ride Ready

[IMG: PRECISION 3+ PRO Dual-Sided Powermeter - Ride Ready]

[IMG: PRECISION 3+ PRO Dual-Sided Powermeter - Ride Ready]

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Dual Side
PRECISION 3+ PRO

Powermeter

Ride Ready

[IMG: Viiiiva]

[IMG: Viiiiva]

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Viiiiva

Heart Rate Monitor

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Blog

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[H4] Mastering Unbound Gravel – Pro Tips from Champion Cameron Jones
May 20, 2026
2025 Unbound Gravel 200 winner Cameron Jones shares his hard-earned insights on equipment, nutrition, and pacing for a successful race.

[H4] The Complete Guide to the 4iiii Viiiiva Heart Rate Monitor
May 11, 2026
This complete guide will walk you through everything you need to know about your Viiiiva Heart Rate Monitor-from its core features to pairing, maintenance, and troubleshooting.

[H4] The Complete 4iiii Power Meter Buying Guide
May 8, 2026
Adding a power meter to your bike is one of the smartest investments you can make. We've put together this complete buying guide to walk you through the process.

[H1] Products

[IMG: Power Meters]

[H5] Power Meters

[IMG: Heart Rate Monitor]

[H5] Heart Rate Monitor

[IMG: Parts & Accessories]

[H5] Parts & Accessories

[H1] Apps

[IMG: 4iiii App]

[H5] 4iiii App

[IMG: Ride App]

[H5] Ride App

[H2]
Learn More

[H4] PRECISION 3+ Platform, with Apple Find My

We have worked with Apple to integrate Find My technology directly into the new PRECISION 3+ platform.

[H4] The Technology

See what’s under the cap.

[H4] Why Train With Power

Power Meters are essential tools for every type of cyclist.

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Power Meters

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Power Meters

Comparison Chart

Installation

Any

Factory Install

Ride Ready

reCYCLED

Side

Any

Dual Side

Drive Side

Non-Drive Side

Model

All

PRECISION 3+

PRECISION 3+ PRO

PRECISION 3

[H3] Factory Install
Want a power meter on your existing crank? We can do that!
Once you order a Factory Install, our team will send you an expedited FedEx label you can use to ship your crank to us. FedEx will take your crank to our factory, where a power meter will be installed.
Factory Install power meters use the same hardware and electronics and must pass all the same quality and accuracy checks that Ride Ready power meters do. As well, Factory Install power meters are backed by our industry-leading 3 year warranty.
[H3] Ride Ready
Want it now? A Ride Ready power meter is an already-built power meter preinstalled on a brand new Shimano crank or crankset of your choice.
Our fulfillment team will start processing your power meter order as soon as we receive it.

[H3] Dual-Sided
Dual-sided power meters have power meter pods installed on both the left and right sides of your bike. These are paired together and combine the individual power measurements from each leg to show you your total power output.
This is the ultimate and most accurate training tool. You can get advanced metrics like left/right balance, torque effectiveness, and pedalling efficiency.
[H3] Drive-Side
Drive-side power meters involve a single power meter pod installed on the drive-side crank arm. It measures the power created by your right leg, and multiplies by two to give you your total power output.
A drive-side power meter is a great option for those who are just getting into training with power. If you have tight clearance between your chainstay and crank, a drive-side factory install will eliminate any clearance issues.
[H3] Non-Drive-Side
Non-drive-side power meters involve a single power meter pod installed on the left crank arm. It measures the power created by your left leg, and multiplies by two to give you your total power output.
A left-sided power meter is a great option for those who are just getting into training with power.

[H6] More Products:

[H4]
Heart Rate Monitor

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Parts & Accessories

[IMG: PRECISION 3+ Left-Side Powermeter - Ride Ready]

[IMG: PRECISION 3+ Left-Side Powermeter - Ride Ready]

[H4]
Non-Drive Side
PRECISION 3+

Powermeter

Ride Ready

[IMG: PRECISION 3+ PRO Dual-Sided Powermeter - Ride Ready]

[IMG: PRECISION 3+ PRO Dual-Sided Powermeter - Ride Ready]

[H4]
Dual Side
PRECISION 3+ PRO

Powermeter

Ride Ready

[IMG: PRECISION 3+ Left-Side Powermeter - Factory Install]

[IMG: PRECISION 3+ Left-Side Powermeter - Factory Install]

[H4]
Non-Drive Side
PRECISION 3+

Powermeter

Factory Installed in Canada

[IMG: PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install]

[IMG: PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install]

[H4]
Dual Side
PRECISION 3+ PRO

Powermeter

Factory Installed in Canada

[IMG: PRECISION 3+ Left-Side Powermeter - Ride Ready reCYCLED]

[IMG: PRECISION 3+ Left-Side Powermeter - Ride Ready reCYCLED]

[H4]
Non-Drive Side
PRECISION 3+

Powermeter

Ride Ready reCYCLED

[IMG: PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install - Dual Upgrade]

[IMG: PRECISION 3+ PRO Dual-Sided Powermeter - Factory Install - Dual Upgrade]

[H4]
Drive Side
PRECISION 3+ PRO

Powermeter
Dual Upgrade

Factory Installed in Canada

[H2]
Power Meter Comparison

Feature

PRECISION 3+ PRO

PRECISION 3+

Type

Dual

Non-Drive Side

Apple Find My

ANT+ & Bluetooth Smart

Accuracy +/- 1 %

Automatic Terrain Selector

Cycling Metrics

Left/Right Balance

-

CR2032 Coin Cell

Battery Life

up to 550 hrs

up to 800 hrs

Waterproof Rating

IPx7

IPx7

Cadence Range

30 - 170
rpm

30 - 170
rpm

Power Range

0 - 4,000 W

0 - 4,000 W

Profile

5.5 mm

5.5 mm

Weight

29 g

9 g

Operating Temperature

0 - 50 ºC

0 - 50 ºC

Storage Temperature

-40 - 60 ºC

-40 - 60 ºC

3 Year Warranty

IPX5
Protected against low pressure water stream from any angle.

IPX7
Withstands incidental exposure to water of up to 1 meter for up to 30 minutes.

[H4] Apple Find My
Offering the peace of mind in knowing where your power meter is.

[H4] Accuracy in 3D
With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke.

[H4] Automatic Terrain Selector
Detects the terrain you’re riding on for more responsive cadence and power feedback/data. Ride the roads less traveled with confidence.

[H4] Left Right Balance
Dual power meters measure the power from each individual leg to calculate your total power output.

[H4] Cycling Metrics
Get more data like pedal smoothness and torque effectiveness to analyze and optimize your pedal stroke.

[H4] Water Resistance
Engineered for durability, our IPX7 water-resistance rating ensures your heart rate monitor keeps pace with you, handling your most grueling training days without missing a beat.

[H4] Waterproof
Designed to work in our tough environment. With an IPX7 waterproof rating you can be assured that your power meter can handle the toughest conditions.

[H4] 3 Year Warranty
A lot can happen in 3 years. You probably won’t need to use it, but it’s reassuring to know that all 4iiii power meters are backed by an industry-leading 3 year warranty.

[H4] Battery Life
Our products’ impressive long-lasting battery life means you won’t have to worry about frequent battery changes.

With an ultra low profile design, your 4iiii power meter is compatible with more bike frames than ever before.

[H4] Light Weight
4iiii makes the lightest power meters on the market. We’re committed to helping you get faster, one gram at a time.

[H4] ANT+ & Bluetooth
Get the same numbers training inside and outside. The Viiiiva is both ANT+ and BLE compatible so you can use it on your preferred head unit and favorite indoor training app.

4iiii power meters communicate their measurements over both ANT+ and Bluetooth, letting you read and record your power numbers on an enormous catalog of head units, sport watches, smartphones, and computers.

[H2]
More Products

[IMG: Heart Rate Monitor]

[H5] Heart Rate Monitor

[IMG: Parts & Accessories]

[H5] Parts & Accessories

[H2]
Learn More

[H4] PRECISION 3+ Platform, with Apple Find My

We have worked with Apple to integrate Find My technology directly into the new PRECISION 3+ platform.

[H4] The Technology

See what’s under the cap.

[H4] Why Train With Power

Power Meters are essential tools for every type of cyclist.

[H1]
Blog

[H2]
Stories

More

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[H4] Mastering Unbound Gravel – Pro Tips from Champion Cameron Jones
May 20, 2026
2025 Unbound Gravel 200 winner Cameron Jones shares his hard-earned insights on equipment, nutrition, and pacing for a successful race.

[H4] Racing in Japan
April 29, 2026
4iiii welcomes Atsemo Utsunomiya Blitzen the Japanese team that’s been a staple on the scene since 2009

[H4] Epic Send
March 26, 2026
Andrew L’Esperance shares his 650km/8day journey through the 2026 Absa Cape Epic alongside teammate Lachlan Morton.

[H4] The Worst Birthday Ever
February 12, 2026
Former pro roadie and current YouTuber extraordinaire Phil Gaimon recently celebrated his 40th birthday by tackling the world's toughest climb.

[H4] Powerful Partnerships in 2026
January 28, 2026
Across the spectrum of road, mountain biking, triathlon, cyclo-cross, gravel, and beyond, 4iiii has teamed up with some of the world’s best for 2026.

[H4] Watts Up With Cyclo-Cross?
January 5, 2026
Multi-time Canadian national champion and 4iiii athlete, Michael van den Ham, fills us in on Watt’s Up With Cyclo-Cross.

[H4] A Memorable Five From 2025
December 16, 2025
It takes power to reach the top. We’re counting down the five most impressive moments of 2025 where 4iiii athletes proved they have what it takes to lead the pack.

[H4] Exploring FKT Challenges
November 17, 2025
Catch up with 4iiii athlete, Svein Tuft, and learn about his newest two-wheeled adventures: FKT challenges.

[H4] Underdog No More
November 5, 2025
Life Time Grand Prix overall winner and 4iiii athlete, Cameron Jones reflects on his breakthrough season.

[H4] Double Rainbow Day in Switzerland
September 22, 2025
Two recently crowned Cube Racing MTB World Champions talk about what it feels like to win a rainbow jersey and the kind of power it took to cross the line first!

[H4] The Power of Imperfect
September 17, 2025
Nick Kleban, recent winner of the TransRockies Gravel Royale stage race, outlines how he makes the most of his training time.

[H4] Q&A With Sarah Van Dam
August 22, 2025
We caught up with Sarah Van Dam, one of Canada’s rising talents, after she just completed her first Tour de France Femmes alongside her Ceratizit-WNT teammates.

[H4] Power In The Dolomites
July 29, 2025
Kait Boyle documents her and Kurt Refsnider's bikepacking trip through Italy's Dolomites.

[H4] American XCM National Championship
July 16, 2025
4iiii’s Hannah Otto talks about her impressive title win at the American XCM National Championship.

[H4] Diving Into The Data
June 23, 2025
4iiii’s Emma Maaranen applies her knowledge and experience as a professional rider and coach and analyzes the data of one of her athletes.

[H4] Cameron Jones - From Wildcard to Winner of Unbound Gravel 200
June 2, 2025
New Zealand powerhouse and 4iiii sponsored athlete, Cameron Jones, wins the Life Time Grand Prix's Unbound Gravel 200.

[H4] Redlands Bicycle Classic Rookies
April 23, 2025
Rallying the Troops at North America’s Biggest Stage Race, Manteo Racing team competes at the Redlands Bicycle Classic.

[H4] The Zwift Academy Experience
March 19, 2025
Anabelle Thomas, 4iiii local legend, speaks about the unique and entertaining experience that was the 2025 Zwift Academy.

[H4] Powerful Partnerships in 2025
March 7, 2025
The 2025 cycling season is in full swing, and we’re excited to be working with a stellar line-up of teams and athletes once again, as they tackle all disciplines of our sport.

[H4] Phil and the Volcano
February 14, 2025
4iiii athlete Phil Gaimon set a new record time while pushing wildly impressive and steady watts on the worlds longest paved climb to the peak of the Haleakala Volcano.

[H4] A Rolling Conversation with U23 Pro, Reid Kinniburgh
January 15, 2025
Come along for a ride with a local U23 Pro and 4iiii athlete, Reid Kinniburgh, as we get out for an unseasonably warm-winter spin and talk about his training, racing and steady progress in the cycling ranks.

[H4] 5 Ways to Stay Fit Amidst The Festive Period
December 12, 2024
The holiday season is fast approaching and with it, a host of festive activities that will fill our hearts, stomachs and calendars. We’ve compiled a list of 5 Ways to Stay Fit Amidst the Festive Period, so you can maximize your merriment, while minimizing the detriment to your hard-earned gains.

[H4] The Power of Building Habits
December 9, 2024
Whether you’re aiming for long-term performance improvements or simply seeking to maintain your fitness, establishing habits is the key to consistency, and consistency is the foundation of success in any training regime.

[H4] Sam Boardman - A Man (And His Mullet) Abroad
November 22, 2024
Make yourself a coffee, find a comfy seat and dive into our biggest blog to date, with Project Echelon Racing’s Sam Boardman. as he shares an in-depth perspective of a North American pro road racer, tackling their first European campaign.

[H4] Cory Wallace - King of the 24-hr Solo MTB Race
October 21, 2024
After riding for 24 hours straight, Kona rider Cory Wallace, who hails from Jasper, Alberta, took the win at the WEMBO 24 Hour Solo World Championships in Canberra, Australia.

[H4] Trans Rockies - Gravel Royale 2024
September 12, 2024
This years Gravel Royale was the second edition of the Rocky Mountain 3-day event consisting of 250km of trails and forestry roads, nearly 5000m of climbing, river crossings, and countless postcard-worthy views.

[H4] Leadville 100 - Tales from the Trails with Hannah Finchamp
August 13, 2024
2022 Leadville 100 Women's Champion, Hannah Finchamp, speaks about how this years edition of the race played out for her.

[H4] Power Profile with Ivanie Blondin - An Athlete For All Seasons
July 10, 2024
Ivanie Blondin is an Olympic gold and silver medal-winning long track speed skater, who now spends her “off-season” competing as a world-class road cyclist.

[H4] Canadian Gravel National Championships Recap
June 27, 2024
The second edition of the Canadian Gravel National Championships were hosted just north of 4iiii’s Cochrane headquarters, in the rolling foothills surrounding Water Valley.

[H4] 8 Great Gravel Events to Get Excited About in 2024
March 27, 2024
There’s never been a better time to sign up for some road-less-travelled adventures! We’ve compiled a list of some of the events we’re most excited to be partnering with this year.

[H4] Griffin Easter: Transcordilleras Race Report
March 1, 2024
Hot off an overall win at the Colombian Transcordilleras 8-day gravel stage race, 4iiii-sponsored rider Griffin Easter put together an amazing post-race recap to sum up the South American adventure.

[H4] Every Superhero Has an Origin Story
November 16, 2023
Alison Jackson’s rise from life on the bison farm to World Tour legend.

[H4] True North, Strong and Speed
October 12, 2023
Head North with us and the 4iiii-sponsored Maxxis Factory Racing team to relive the recent Canadian Cross-Country Marathon Championships in our latest Blog!

[H4] Power On: EF Education-Tibco-SVB at Le Tour
September 26, 2023
The second edition of Le Tour de France Femmes took place this summer, with eight action-packed stages highlighting the sport’s beauty and the power of the women’s pro field.

[H4] Rebecca’s Private Idaho: Queen’s Stage Race
September 18, 2023
Griffin Easter recaps his weekend of racing at Rebecca’s Private Idaho.

[H4] UCI World Championships Recap with 4iiii Mountain Bike Athletes: Ophélie Grandmont & Zorak Paillé
September 6, 2023
With over 200 rainbow jerseys awarded to newly crowned world champions and over 2,600 athletes gathering for the championships, it was a true melting pot for all things cycling. We were fortunate to have several 4iiii athletes present, proudly representing their national teams.

[H4] A Canadian in Paris (Ontario) - Q&A With Evan Russell, Canada’s First Gravel National Champion
May 1, 2023
Canada’s first-ever gravel national championships took place Sunday, April 30th as part of the 29th edition of Ontario’s, Paris-Ancaster spring classic. The Men’s title was claimed by rising Canadian talent, Evan Russell, the 21-year old from BC.

[H4] Alison Jackson’s Paris Roubaix Femmes Triumph
April 16, 2023
Dancing on the Pedals and into the History Books.

[H4] 2023 E-Sport World Championships Race Recap
March 26, 2023
Team Canada members Warren Muir and Jean-Michel Lachance provide a recap of their events.

[H4] Ice & Asphalt
February 17, 2023
We were fortunate enough to catch up with Canadian skater Hayden Mayeur, to discuss the intersection of ice and asphalt and how he applies his passion for cycling to support his ascent on the international skating stage.

[H4] Powerful New Year
February 1, 2023
2023 is upon us, and with the New Year comes a sense of possibility, a chance to commit to new habits, goals and adventures.

[H4] Lizzy Banks - Athlete & Coach
November 8, 2022
Read on to find out how the double Giro d’Italia Donne stage winner plays the role of athlete and coach at the World Tour level and some tips she has for doing both successfully.

[H4] Tamara Jewett - Powering Back to the Podium
October 28, 2022
Tamara Jewett, a Canadian professional triathlete, comes from a background in high-performance middle distance track, which she transitioned from in 2017 due to injury.

[H4] Haley Smith: Going After Gravel
October 22, 2022
Making up one-half of the powerful Maxxis Factory Racing team, Canadian Haley Smith is a highly accomplished professional off-road cyclist, a Tokyo 2020NE Olympian, Commonwealth Games and XCO World Cup medalist and current leader of the women’s Life Time Grand Prix standing.

[H4] Fenella Langridge: The Road to Kona
October 5, 2022
Britain's Fenella Langridge has been making waves in the pro triathlon field this season.

[H4] TransRockies Gravel Royale: The House Always Wins
September 27, 2022
The 4-day, 4-stage, Easton-sponsored “Royal Flush” event, which dealt out 407km of riding and 7500m of climbing over terrain that was 84% gravel, 10% pavement, 5% doubletrack and 1% singletrack.

[H4] Behind the Scenes of TdF Femmes with EF Education-TIBCO-SVB - Part 2
July 22, 2022
As the official power meter sponsor of TIBCO-SVB since 2018, we are really looking forward to watching the riders depart from Paris and race into the history books of women’s cycling!

[H4] Behind the Scenes of TdF Femmes with EF Education-TIBCO-SVB - Part 1
July 22, 2022
The iconic Tour de France Femmes race returns to the women’s calendar for the first time in over 30 years! As the official power meter sponsor for EF Education - TIBCO - SVB, the six rider roster will be racing with 4iiii PRECISION Powermeters.

[H4] 4iiii Factory Install Experience with Lex Albrecht
May 12, 2022
As a professional cyclist, I've spent over a decade racing on the road, as a member of the Canadian National Team and with various professional trade teams. A significant tool of the trade has always been a power meter, which I’ve used to build and track training and racing goals over the years.

[H4] 2022 Ronde Van Vlaanderen Recap with Sara Poidevin
April 6, 2022
Sara Poidevin shares her race recap after the 2022 Ronde Van Vlaanderen, April 3, 2022.

[H4] Power Profile with Sara Poidevin
March 30, 2022
Sara is currently in Europe racing with her EF Education - Tibco - SVB team, . She was kind enough to share some insight on her life in the pro ranks and how she implements a power meter and power data into her training and racing, to help her perform at the highest level of the sport.

[H4] Safa Brian - Relive the Ride Through Data
March 29, 2022
4iiii Athlete, Brian “Safa” Wagner has carved out a unique place for himself in the cycling community as one of the fastest road descenders.

[H4] Power Profile with Warren Muir
March 3, 2022
While balancing a full time job as an X-Ray Technician, Warren is one of the strongest time-trialists in the country, winner of multiple Alberta Provincial Champions and a Top-Tier Zwifter racing with Team DRAFT.

[H4] The Inside Ride
February 18, 2022
If someone had told me as a young cyclist that riding a bike indoors, on a trainer, would one day compete with the joy of riding outside, I would’ve waited for the punchline… and yet, in the year 2022, here we are!

[H4] 4iiii Powering Olympic Athletes
July 23, 2021
At this years Tokyo games, we couldn’t be more proud to have Yoeri Havik, Dan Martin, Guilllaume Boivin, Mike Woods, Krists Neillands, Sarah Gigante, and Eri Yonamine riding 4iiii PRECISION Pro Powermeters.

[H4] 4iiii Partners with Emily Batty and Newly Formed Canyon MTB Racing
March 11, 2021
We are so excited to announce our partnership with Emily Batty’s newly formed Canyon MTB Racing team. We will be supplying factory installed PRECISION Powermeters across all lines of the team bikes which include the Canyon 2021 Lux, Exceed, and Grail.

[H4] 4iiii and Israel Start-Up Nation Continue to Push Watts Together in 2021
February 18, 2021
We are proud to announce our continued collaboration with the professional WorldTour Cycling Team Israel Start-Up Nation. We will continue to supply PRECISION PRO Powermeters and Viiiiva Heart Rate Monitors to the team in 2021.

[H4] Lex Albrecht on Power & Progression
October 23, 2020
The curve of my progression in cycling took off when I started using a power meter for training.

[H4] 4iiii is the Official Power Meter Sponsor for Israel Start-Up Nation’s Historic Tour de France Debut
October 23, 2020
As the official power meter supplier for the 2020 WorldTour Season, Israel Start-Up Nation and their eight man roster will be riding with the dual-sided PRECISION PRO Powermeters and Viiiiva Heart Rate Monitors to help them reach their peak performance to reach the podium at the Tour de France.

[H4] A Summer Without Racing - Creating the Ultimate Fondo
June 1, 2020
Highwood Pass (located in Kananaskis Country, Alberta, Canada) is a cyclists paradise. Up until June 15th the road is completely closed to all traffic, allowing cyclists to have the mountain pass all to themselves.

[H2]
Tech & Tips

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[H4] The Complete Guide to the 4iiii Viiiiva Heart Rate Monitor
May 11, 202