4iiii - Left Side Precision 3+ Ultegra R8100 Power Meter
SKU: 98457583713

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 Jul 6 - Jul 11

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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: 98457583713

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Amazon Customer
Louisville, US
★★★★★ 5
Great little shelf unit
Color: White, Size: 9.3 D x 19.5 W x 41.8 H in
Easy to put together by myself. No issues. Took less than an hour to completely assemble. It’s perfect for purpose intended. A top shelf closet organizer for knick knacks and other smaller items.
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Reviewed in the United States on December 31, 2025
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Allyeah
Lowell, US
★★★★★ 4
Great for classroom organization
Color: White, Size: 9.3 D x 19.5 W x 41.8 H in, Color: White, Size: 9.3 D x 19.5 W x 41.8 H in
These shelves are perfect for organizing my classroom library. The cubes are a little smaller than I expected, so they don’t fit larger picture books well. I was able to make it work by using bins inside the cubes and slanting the bigger books, but just know it’s best for regular-sized books. Since they’re a bit shorter, I stacked two together and it gave me the height I needed. Overall, they look great, were easy to set up, and hold a lot of books in an organized way. My students can easily find what they need, and I really like the clean, simple style.
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Reviewed in the United States on October 5, 2025
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Zackary Rowe
Omaha, US
★★★★★ 5
Great for the Price
Color: White, Size: 9.25"D x 19.49"W x 31.5"H, Color: White, Size: 9.25"D x 19.49"W x 31.5"H
I needed a cheap little bookshelf for this small play area. The shelf was relatively easy to assemble by myself, and it's sturdy enough to stand on carpeted flooring. I didn't bother installing the safety wall mount because I live in a rental and I can't screw things into the walls. The bookshelf is too small for standard storage cubes, so I purchased a couple of 9-inch cubes from the Dollar Tree and they fit just fine. I might rearrange the contents later.
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Reviewed in the United States on January 5, 2025
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Heidi Rhodes
Alexandria, US
★★★★★ 5
Great shelf
Color: White, Size: 9.3 D x 19.5 W x 41.8 H in
Loved it!
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Reviewed in the United States on April 5, 2026
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Michelle
Pawtucket, US
★★★★★ 5
Storage
Color: Espresso, Size: 9.3 x 19.5 x 41.7 in
Helped with storage with games and movies
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Reviewed in the United States on May 24, 2026

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