4iiii brings power based training to the masses with the Precision line of left side power meters. Requiring only a non-drive crank arm change with the 4iiii Dura-Ace 9100 crank arm, it takes only minutes to install. Whether you’re a pro or simply training hard, PRECISION power meters 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.
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
NOTE: check your frame clearance before ordering by downloading and printing the compatibility guide
