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4iiii Ultegra R8100 Precision 3+ Single Leg Power Meter
4iiii Ultegra R8100 Precision 3+ Single Leg Power Meter
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4iiii Ultegra R8100 Precision 3+ Single Leg Power Meter 1
4iiii Ultegra R8100 Precision 3+ Single Leg Power Meter 2

4iiii Ultegra R8100 Precision 3+ Single Leg Power Meter

(5)

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Mfg PartNum:
$449.99
MSRP: $449.99
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Description

A Proven Choice For Pros & Weekend Warriors Alike

The 4iiii Ultegra R8100 Precision 3+ Single Leg Power Meter represents their most powerful unit to date, compressed into a smaller, lighter package and featuring support for Apple Find My.

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, +/-1% accuracy and backed by our industry-leading 3-year warranty, the PRECISION 3+ Powermeter will be your trusted tool for years to come.

Features:

  • Apple Find My compatible.
  • +/- 1% accuracy with 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.
  • Indicator Light shows at a glance when your power meter has turned on, performed a successful Zero-offset, or has a low battery.
  • With an ultra low profile design, the PRECISION 3+ is compatible with more bike frames than ever before.
  • 3-year warranty

Specs:

  • Accuracy: +/- 1%
  • Battery Type: CR2032 Coin Cell
  • Battery Life: up to 800 hours
  • Waterproof Rating: IPx7
  • Cadence Range: 30 - 170 RPM
  • Power Range: 0 - 4,000 W
  • Height: 5.5mm
  • Weight: 9g
  • Operating Temperature: 0 to 50 °C
  • Communication Protocols: ANT+, Bluetooth

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Please note: This product ships signature required.

Specifications

165mm - Left Leg

Mfg PartNum: PML300-S18A00X 

170mm - Left Leg

Mfg PartNum: PML300-S18B00X 

172.5mm - Left Leg

Mfg PartNum: PML300-S18C00X 

175mm - Left Leg

Mfg PartNum: PML300-S18D00X 

Reviews

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Reviewed 10/7/2024
by BobJ
Competitive Racer
Arizona
Value Rating
Overall Rating
Lower cost power

Low cost option for power. Easy to install. It took maybe 30 minutes to put it on, connect to the app and to the Garmin head unit. Calibration is easy in both the app and head unit. Software updates quick with no issues. It seems like it might lag a touch here and there being a single side comparing it to my spider based units, but overall it works great.

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Reviewed 5/16/2024
by Wil
FL
Overall Rating
Power at an affordable price, find my bike provides peace of mind

Power meter works as designed. It allowed me to train using a garmin designed training. Easy to pair with Garmin watch and computer, and also with the 4iiii app. I can zero it if required but it has worked as designed. If I was not interested in training using power to improve my performance I would not bought it, however it provides all the necessary power training metrics that I need to improve my cycling performance, at a great and reasonable price.

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Reviewed 10/7/2024
by Anonymous
Cincinnati
Overall Rating
Break through for training

I love this for monitoring efforts on long rides.

Great product, shipping and service.

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Reviewed 4/5/2024
by Steve F
Saugus,MA
Overall Rating
The best power meter?

Good accuracy, tremendous battery life and the piece of mind with Apple Find My. Assuming the battery life is as good as advertised it should last me about 2 years. I did end up putting in an Energizer lithium since the Panasonic battery that comes with it doesn�t seem to put out enough power, the connection to my Garmin kept getting dropped but has been fine since.

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Reviewed 12/6/2024
by John
Portland area
Overall Rating
Power and cadence yes

I've only ridden 230 miles in 7 rides since installing this power meter, but so far it has functioned flawlessly. I am very pleased with it so far.

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