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Christmas Power Box
(Dual) Ride Ready (includes new crankset)

$1,499.99 USD

Product Details


Select your crank model and your FREE items will be added at check-out!

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 powermeter 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 Ride Ready comes pre-installed on a new Shimano DURA-ACE FC-9000 series crankset you purchase from us.

PRECISION PRO pre-installed on new Shimano DURA-ACE 9000 cranksets. Lead times will vary; we will contact you regarding delivery date when you place your order.

Check frame clearance before ordering by downloading and printing the compatibility guide:
Letter size paper (pdf) | A4 size paper (pdf)

Customer Reviews

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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 (power meter only)
  • 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?

First, you choose the specific Shimano Dura-Ace or XTR crankset you want at checkout. Then, we’ll install our PRECISION PRO power meter to your new crankset, and ship it 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.

Don’t want to purchase a new crankset? No problem: Check out our PRECISION PRO Factory Install for more options.

Display Compatibility

Android Apps
  • CatEye 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
  • M450
  • V800 BTLE
Please note the Polar V650 is not compatible

  • Ambit3 Sport (Bluetooth)