Whether you’re a pro or simply training hard, PRECISION power meters deliver industry-leading accuracy, highly dependable cadence data, 3D power meter 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 left side Ride Ready comes is installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace).
Check your frame clearance before you order by downloading and printing the compatibility guide:
Letter size paper (pdf) | A4 size paper (pdf)
In the Box 4iiii PRECISION Power Meter For Shimano 105 5800 2 2032 coin cell batteries Quick Start guide
- 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