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4iiii PRECISION Shimano Ultegra R8000 Dual-Sided Crankset

Josh Matthew May 30, 2019

$999.99

4iiii’s 3-D tri-axial strain gauge technology, dual-sided power and +/- 1.5% accuracy

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Description

4iiii PRECISION Shimano Ultegra R8000 Dual-Sided Crankset

The 4iiii PRECISION Shimano Ultegra R8000 Dual-Sided Crankset combines 4iiii’s patent pending 3-D tri-axial strain gauge technology with Shimano’s best-selling Ultegra R8000 crank. The result is an accurate, lightweight and highly reliable power meter crankset that is capable of tacking the most grueling workouts or races.

The dual-sided 4iiii R8000 crankset also features independent left/right power measurement. With a power sensor located on the inside of both crank arms, the power meter can measure the forces generated by each leg individually.

The 4iiii is also extremely lightweight, adding approximately 20 grams to the Shimano R8000 crankset. The power meter is compatible with both ANT+ and Bluetooth SMART devices and is accurate to +/- 1.5%.

 

4iiii Dual-Sided Power Meter Options

  • Chainrings: 50/34 | 52/36 | 53/39
  • Crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm

 

Compatibility

The 4iiii R8000 Dual-Sided Power Meter is compatible with all Shimano Hollowtech II road cranks.

 

In the Box

  • 4iiii Dual-Sided Crankset
  • 2 CR2032 batteries
  • Quick Start guide

 

Specs

Name4iiii PRECISION R8000 Dual-Sided
Bike TypeRoad
Location of Power MeasurementCrank arm
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementYes
InstallationMore involved (60 min. estimated)
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.5%
Weight694 grams (170 mm, 50-34T)
Battery TypeCR2032
Battery Life100 hours
Method of Cadence MeasurementAccelerometer
Warranty1 year

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