The 4iiii Precision LH Power Meter is a revolutionary product from 4iiii, offering precision power meters pre-installed on your choice of left-sided Shimano crank arm. It features 4iiii's patented Precision 3D Strain Gauge technology, which measures three
The 4iiii Precision LH Power Meter is a revolutionary product from 4iiii, offering precision power meters pre-installed on your choice of left-sided Shimano crank arm. It features 4iiii’s patented Precision 3D Strain Gauge technology, which measures three aspects of your pedal stroke to deliver highly accurate data.
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