SKU: 91929373629

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

Sale price$418.45 Regular price$464.95
Save 10%

Pay in installments of $116.24 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 18 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 4
Decent quality for the price and lots of space for your “stuff”.
Color: Single layer-Brown
This is a nice vanity tray for the price. There are a few minor rough edges but nothing that takes away from the overall appearance and functionality. This helps keep my dresser organized and holds a lot of items. I use this for my car keys, wallet, air pods, pocket knife, glasses, and a few bottles of cologne…and still have room to spare. Easy to recommend as a gift for a guy that has everything
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
B
Verified Purchase
Barbara Bradley
West Palm Beach, US
★★★★★ 5
Very nice
Color: Single layer-Brown
Dad needed something to help him remember the items he needs to take with him. So we purchased this organizer for him. He's been using it and makes sure it's empty before leaving the house. It has helped him tremendously. The only improvement I would recommend is make the box slot bigger for today's adult glasses.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
A
Verified Purchase
Arce3
Whiting, US
★★★★★ 5
A wife’s life saver.
Color: Single layer-Brown
My husband uses it every day. He puts everything in his pockets right into this organizer and can find his things easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
C
Verified Purchase
Cobalt
New York, US
★★★★★ 5
Men’s Dresser/night stand jewelry tray
Color: Black
This night stand/dresser jewelry tray is perfect to hold men’s wallet, keys, change, watch, jewelry and a section for cell phone with a cut out for charging cable. Heavy weight and sturdy. A quality piece.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 15, 2024
A
Verified Purchase
AV
Dallas, US
★★★★★ 5
Quality and affordability
Color: Black
This is one of the best jewelry boxes I have ever had. It is super sleek and practically designed. It sits well on a counter or dresser and blends into the room with ease. The compartments are well designed and lined with velvet that makes your jewelry pieces feel well protected and easily accessed. You are able to organize in a way that works for you. I really liked the quality of the product and though it’s not perfect, it’s worth the price for sure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025

recommand products