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4iiii Ultegra R8000 PRECISION PRO installed incl. crankset

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4iiii Ultegra R8000 PRECISION PRO installed incl. crankset

RRP: £689.00

Our Price: £620.10

Availability: Discontinued

Measures power output from right & left sides.
The 4iiii Ultegra R8000 Precision Pro Dual Sided provides consistent data accurate to +/- 1%, perfect for pacing an effort on a big climb or for targetted training.
The additional pods add just 25 grams to the weight of the base Ultegra crankset & they run on easily available CR2032 coin cell batteries.
Battery life in excess of 100 hours, a status indicator alerts at 15% power remaining gives ample time to change them.

ANT+ & Bluetooth connectivity provides connection to a wide variety of devices and allows for over-the-air upgrades.
The 4iiii smartphone app gives access to the rider compensation scale and other useful features.

Check your frame clearance before you order by downloading and printing the compatibility guide: A4 size paper (pdf)




  • 3D power meter technology (patent pending) measures tri-axial strain on your crank
  • 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
  • Over-the-air upgrade capability for adding new features and updates


  • 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
Additional Information

Additional Information

Brand 4iiii