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.

Factory Install Crank Compatibility

PRECISION PRO: Compatible full cranksets:

Shimano ( Road)

Dura-AceFC 9000
Dura-Ace FC R9100
Ultegra FC R8000
105 FC R7000

Shimano (MTB)
XTR FC M9000 1X
XTR FC M9020 1X
XTR FC M9100 1X
XTR FC M9120 1X
XT FC M8000 1X

SRAM
Force 1x Carbon
Force 1x AXS Carbon
XX1 Carbon
X01 Carbon

FSA
Energy
K-Force carbon

Campagnolo
Potenza

More Details

Features
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

Specifications
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

Resources
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.

4iiii factory 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.

Or check out 4iiii 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
CATEYE
Stealth evo+
Stealth 50
Strada Smart
Padrone Smart
Padrone Smart+
Garmin
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

Suunto
Ambit3 Sport (Bluetooth)