Lead times will vary; we will contact you regarding the delivery date when you place your order.
Free shipping to the Republic of Ireland
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.
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
Weight: 9 grams
Data accuracy: +/- 1% error margin
Battery life: 100+ riding hours on 2032 coin cell battery