About the 4iiii PRECISION Power Meter For Shimano 105 5800
Used by the World Pro Etixx-Quick-Step Team, the 4iiii PRECISION Power Meter for Shimano 105 5800 is the lightest, most affordable, ready to ride direct force power meter available. The added weight of the 4iiii power meter is only 9 grams and it is accurate to within +/- 1%.
The 4iiii power meter is a left-only crank arm-based power meter and replaces your current left side crank arm. The power meter takes the power that is generated by your left leg and doubles it in order to determine your total power output.
In addition to being affordable, lightweight and highly accurate, the 4iiii power meter measures precise cadence data, has 3D power meter technology capable of measuring tri-axial strain and is compatible with both ANT+ and Bluetooth SMART devices.
4iiii Power Meter Highlights
Most Affordable DFPM
At only $399, the 4iiii for Shimano 105 5800 is the most affordable, ready to ride direct force power meter available.
High Level of Accuracy
The PRECISION is accurate to within +/- 1%. This compares to average accuracy of +/- 1.5-2% for most other power meters.
Lightest Power Meter
At only 9 grams (the weight of the 4iiii pod), the PRECISION is the lightest power meter you can buy!
Easy to Install
Because the PRECISION is a left-side crank arm power meter, installation is a breeze. Just swap it out for your current left-side crank arm and you’re ready to ride! Installation takes minutes…not hours.
In addition to ANT+, the PRECISION also transmits data via the Bluetooth SMART wireless protocol. This means it is compatible with any bicycle computer, smart phone or tablet using these protocols.
4iiii Power Meter Options
Crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm
The 4iiii PRECISION Power Meter for Shimano 105 5800 is compatible with the following Shimano cranks:
In the Box
4iiii PRECISION Power Meter for Shimano 105 5800
2 2032 coin cell batteries
Quick Start guide
4iiii PRECISION Shimano 105 5800
Power Meter Type
Number of strain gauges
9 grams (plus weight of crank arm)
Crank Arm Lengths
165, 170, 172.5, 175 mm
2032 coin cell
Left/Right Power Measurement
Bluetooth SMART and ANT+
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