4iiii-PRECISION PRO Βατόμετρο Ride Ready (includes new crank arm) 

Shimano 105 165mm, 170mm, 172.5mm, 175mm € 355,00

Shimano Ultegra 165mm, 170mm, 172.5mm, 175mm € 455,00

Shimano Dura Ace 165mm, 170mm, 172.5mm, 175mm € 565,00

Shimano XT 170mm, 175mm € 455,00

Shimano XTR 170mm, 175mm € 565,00

Product Details
Whether you’re a pro or simply training hard, PRECISION powermeters deliver industry-leading accuracy, highly dependable cadence data, 3D powermeter technology capable of measuring tri-axial strain on your crank arm. Designed to be durable and lightweight, compatible with ANT+ and Bluetooth head units, PRECISION helps you train harder and smarter.

PRECISION Ride Ready comes installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace). These crank arms will fit bottom brackets using the Hollowtech ii interface.

Features
3D powermeter technology (patent pending) measures tri-axial strain on your crank arm
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
Specifications
Weight: 9 grams
Data accuracy: +/- 1% error margin
Battery life: 100+ riding hours on 2032 coin cell battery

How does it work?
Choose the Shimano left crank arm you want at checkout, and you’ll receive it with PRECISION installed.

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

Suunto
Ambit3 Sport (Bluetooth)
iOS Apps

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