PRECISION Ride Ready Powermeter

Drive SidePRECISIONPowermeter

Ride Ready

Used to pace attacks up the Alpe D’Huez in the Tour de France and to hammer on the Queen K during the Ironman World Championships, the PRECISION Powermeter delivers accuracy and reliability when you need it most. Through our patented 3D Strain Gauge technology, you can be assured that the data you depend on will lead you to your own Yellow Jersey. Packaged into a durable lightweight design and compatible with ANT+ and Bluetooth Smart headunits, PRECISION will help you train harder and smarter.

Shop Now:

Details

A Ride Ready right-side PRECISION includes and comes preinstalled on a brand-new Shimano drive side GRX Crank with a 40T Chain Ring. These crank arms will fit bottom brackets using the Hollowtech II interface.

Note: this crank is also compatible in the 2× configuration.

How Does It Work?

A ride ready PRECISION pod is already preinstalled on a brand-new Shimano crank at our factory. The moment you order, our fulfillment team will get it on its way to you, and you should be able to ride with power as soon as it arrives.

In The Box

Once your ride ready PRECISION Powermeter arrives, it just needs to be installed on your bike using the standard Shimano crank installation process. Connect a headunit or computer, and you can start riding with power!

Tip: If you’re unsure, a bike shop would be happy to aid you in the installation process.

Warranty & Durability

Ridden through rain storms at Strade Bianche, mud filled cross country mountain bike races, and even tested amidst the salt spray of the ocean on Oracle Team USA’s America’s Cup competitors, you can be assured that your 4iiii power meter will be as tough as you are and is backed with an industry leading 3-year warranty. All 4iiii power meters are IPX7-rated for water immersion up to one meter and backed with an industry-leading 3-year warranty.

  1. 4iiii Warranty Policy

Features

  • 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.

  • Battery Life

    Our impressive long-lasting battery life means you won’t have to worry about frequent battery changes.

  • 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.

  • 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.

Specifications

Specification Value
Module Weight 16g (0.6oz)
Power Range 0 - 4,000W
Cadence Range 30 - 150rpm
Communication Protocols ANT+, Bluetooth
Operating Temperature 0 - 50°C (32 - 122°F)
Storage Temperature -20 - 50°C (4 - 122°F)
Battery Type CR2032 lithium ion coin cell
Battery Life 100+hrs
Waterproof Rating IPx7, IPx5
Length 37.7mm (1.5in)
Width 27.6mm (1.1in)
Depth 7.5mm (0.3in)

Compatibility

A 4iiii PRECISION power meter is available ready to ride on any of the crankset configurations listed below. If your desired crankset isn't listed, we may have other products that are compatible.

  • Shimano GRX FC-RX810

Indoors

If the weather or climate make riding outdoors tough, your 4iiii power meter can be used with all popular indoor-training apps, such as Zwift, TrainerRoad, Wahoo SYSTM, Rouvy, and more. Simply use your favourite app’s connection procedure over ANT+ or Bluetooth Smart, put your bike on a trainer, and get riding!

  1. Indoor Training

Resources

  1. Quickstart Guide
  2. Clearance Guide (Letter)
  3. Clearance Guide (A4)
  4. iOS App
  5. Android App
Shimano Safety Notice

Choose your region: