Factory Install
(installed on your crankset)

$499.99 USD

Select Your Crank Model

Product Details

Ridden by the pros, PRECISION PRO dual-side power meters deliver all the benefits of our left-side model (exceptional accuracy, lightweight design, ANT+ and Bluetooth compatibility, 3D power meter technology), plus a specific breakdown of left and right wattage. Perfect for those who need specific power output from each crank side, or anyone who simply wants the best power meter on the market.

The PRECISION PRO Factory Install is installed on your existing crankset at our factory.

Place your order, and we’ll be in touch to let you know how to send us your crank and when you can expect it back in your hands.

Factory Install crank compatibility list (pdf)

More Details

In Depth


  • 3D power meter technology (patent pending) measures tri-axial strain on your crank
  • Accurate, consistent data
  • Lightweight, compact design
  • Battery status indicator via 4iiii app
  • Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products
  • User-friendly app and configurable rider compensation scale factor
  • Easy setup and maintenance
  • Over-the-air upgrade capability for adding new features and updates


  • Weight: 25 grams
  • Data accuracy: +/- 1% error margin
  • Battery life: 100+ hours on 2032 coin cell battery
  • Battery status indicator: Alert at 15% battery power


Software & Documentation

How does it work?

Through our custom install process, PRECISION can be installed on a wide variety of bike frames. We’ll work with you to determine the best fit for your bike.

We install PRECISION PRO on your existing crankset. You send us your crankset, and we install the power meter and send it back to you. Please note, new orders take approximately three to four weeks to be processed. We’ll be in touch via email to keep you posted on the status of your order.

For customers outside of Canada and the USA orders will be subject to applicable VAT and duties.

Or check out our PRECISION LEFT-SIDE Factory Install or PRECISION LEFT-SIDE Ride Ready for more crank options for single-side power meters.

Display Compatibility

Android Apps
  • CateEye Cycling
  • Endomondo
  • Strava
  • Wahoo Fitness: Workout Tracker
  • plus other apps supporting Bluetooth Smart/LE bike power devices
  • Stealth evo+
  • Stealth 50
  • Strada Smart
  • Padrone Smart
  • Padrone Smart+
  • Edge 500
  • Edge 510*
  • Edge 520*
  • Edge 800
  • Edge 810*
  • Edge 820*
  • Edge 1000*
  • Edge Explore 1000*
  • epix*
  • Forerunner 310XT
  • Forerunner 910XT*
  • Forerunner 920XT*
  • fenix 2*
  • fenix 3*
  • fenix 3 HR*
* These Garmin devices are recommended as they provide dual-related power metrics such as left-right balance percentage

iOS Apps
  • CatEye Cycling
  • Endomondo
  • Strava
  • TrainerRoad
  • Wahoo Fitness: Workout Tracker
  • plus other apps supporting Bluetooth Smart/LE bike power devices

  • Ambit3 Sport (Bluetooth)

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