SKU: 91929373629

4iiii - Left Side Precision 3+ Ultegra R8100 Power Meter

Sale price$418.45 Regular price$464.95
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

4iiii - Left Side Precision 3+ Ultegra R8100 Power Meter4iiii LEFT SIDE PRECISION 3+ ULTEGRA R8100 POWER METER Our most powerful unit to date, compressed into a smaller, lighter package and featuring support for Apple Find My, the PRECISION 3+ Powermeter is a proven choice of pros and weekend warriors alike. Whether youre fighting for a Kona qualification spot, logging countless hours on virtual riding platforms or looking to better your time up the local KOM segment, you want accurate and reliable tools

4iiii - LEFT SIDE PRECISION 3+ ULTEGRA R8100 POWER METER 

Our most powerful unit to date, compressed into a smaller, lighter package and featuring support for Apple Find My, the PRECISION 3+ Powermeter is a proven choice of pros and weekend warriors alike. Whether you’re fighting for a Kona qualification spot, logging countless hours on virtual riding platforms or looking to better your time up the local KOM segment, you want accurate and reliable tools to unlock your potential. With up to 800 hours of battery life, an automatic terrain selector, +/-1% accuracy and backed by our industry-leading 3-year warranty, the PRECISION 3+ Powermeter will be your trusted tool for years to come.

 

  • APPLE FIND MY: Offering the peace of mind in knowing where your power meter is.

  • BATTERY LIFE: With up to 800 hours of battery life, you won’t have to worry about changing your battery for years to come.

  • ACCURACY IN 3D: Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke.

  • 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.

  • ULTRA LOW PROFILE: With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before.

  • LIGHT WEIGHT: At only 9 grams the Precision 3 Powermeter weighs about the same as a sip from your water bottle. Our goal is to help you get faster, not to slow you down.

  • 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.

  • 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.

 

Product status indication LED light - for wake up (green), zero offset (blue) and low battery (red)

Patented 3D strain gauge technology to deliver +/-1% accuracy 

Ultra slim design to fit almost every frame

Active temperature compensation

Over the air feature and firmware upgradability

Coin cell battery powered (CR2032)

Compatible with 3rd party training apps such as Zwift, TrainerRoad, SYSTM and more

Waterproof rating: IPx7

Cadence range: 30 - 170 rpm

Power range: 0 - 4000w

Length: 63.79mm

Width: 26.42mm

Height: 5.5mm

Operating temperature: 0 to 50°C 

Communication protocol: ANT+, Bluetooth

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91929373629

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Asia walker
Pawtucket, US
★★★★★ 5
Great Quality, Just Needs a Larger Roll
Style: Strong Heat Resistant, Size: 3 Pack
“This tape is amazing and extremely heavy-duty. It holds up really well and feels very durable. My only wish is that the roll came in a larger size.”
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Reviewed in the United States on February 17, 2026
B
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B.Nicole
Whiting, US
★★★★★ 5
Small but Mighty – Perfect for Cute Little Pressing Projects
Color: Mint, Color: Mint
When I don’t feel like firing up my big heat press, this little thing works absolute magic. I use it for small projects like vinyl on shirts, totes, and detail work, and it performs so well every time. In the picture, I was able to press the faces onto the little ghosts—and how stinking cute did they turn out?! 😍 It heats up quickly, applies heat evenly, and the size makes it so easy to control for small or detailed designs. The three heat settings make it super versatile, and it’s lightweight and comfortable to use without worrying about burning yourself. This mini press is a huge time saver, especially for quick projects or touch-ups, and it’s perfect for crafters or small business owners. Great quality, easy to use, and absolutely worth having on hand.
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Reviewed in the United States on January 24, 2026
C
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Cat
Natrona Heights, US
★★★★★ 5
Perfect mini press.
Color: Mint
Perfect for small projects, heats up quick, and gets the job done.
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Reviewed in the United States on May 25, 2026
D
Verified Purchase
Denise
Whiting, US
★★★★★ 5
Perfect Little Heat Press for Patches! 👏
Color: Raspberry
I bought this to apply patches to jerseys and shirts, and it works great! It heats up quickly, applies even pressure, and makes the job so much easier than using a regular iron. It’s compact, easy to handle, and perfect for small projects or detailed work. Definitely a handy little tool to have on hand — neat, efficient, and does exactly what it’s supposed to do! ✅ Why I love it: • Heats up fast and evenly • Compact and easy to use • Perfect for applying patches or small designs • Great alternative to a bulky iron A small but mighty tool — highly recommend! 🔥👕
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Reviewed in the United States on October 7, 2025
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Erica Atkinson
Chelsea, US
★★★★★ 5
Mini monster
Color: Mint
Its a little mini that does big work, and this ting really is mini lol. But it has done shirts for me wonderfully all sizes, with no issues or complaints. For the price it is amazing
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Reviewed in the United States on March 25, 2026

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