4iiii Precision Ultegra 6800 Powermeter
4iiii Precision Ultegra 6800 Left Arm Powermeter
Accurate measurement of cycling effort is vital for anyone who takes cycling seriously. PRECISION powermeters provide industry leading accuracy, together with reliable cadence data. PRECISION 3D technology is capable of measuring tri-axial strain on the crank arm, ensuring the accuracy of the measurement. Designed to work flawlessly with Bluetooth and Ant+ head units, PRECISION powermeters offer an accurate, lightweight, durable and affordable method of measuring rider power.
PRECISION power meters are installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace). These crank arms will fit bottom brackets using the Hollowtech ii format.
- 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
Note: Check your frame clearance before you order by downloading and printing the compatibility guide Click Here
Mr MuroThe item I bought arrived in about a week. I mounted on my bike immediately and ran about 200 km. It worked without problem. I am satisfied with high performance.
RichardVery easy to pair up and calibrate. Durability still to be tested
Mr KoekenReceiver powermeter within 2 days. Installation succeeded within 10 minutes. Pairing with Garmin Edge 810 and Fenix 5 also went smoothly and without any problem. I have done 5 rides with the 4iiii now and it is a great help for training and feedback purposes. A complete new world has opened. I use the program "golden cheetah" to analyse the TCX data from my Garmins. I can greatly recommend the 4iii product and services of Merlincycles. (Especially at this great price)
Mr ElkinEasy to install and set up.