Precision Power Meter -105 5800 Black Whether youre 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
The 4iiii Precision Power Meter for Shimano 105 5800 cranks is a pre-installed power meter on a Shimano 105 left hand crank arm. This allows you to simply replace your left hand crank arm and youre ready to ride. Available in Black or Silver with a choice of 170mm, 172.5mm or 175mm crank arm lengths.
This unit comes pre-installed on a Shimano Dura Ace 9000 left hand crank Click here for The 4iiii Manual. Improved Battery Life Extend your battery life up 100 hours with the latest Firmware upgrade. Weve also made improvements that make allowance for general sensor vibration so you no longer have to remove your battery when transporting your bike. Battery Indicator Now you will be able to see