4iiii Precision

4iiii Innovations produce power meters for cyclists of all levels from amateur racer to elite pro. The 4iiii Precision crank arm power meter is the lightest on the market offering great value for money with no compromise to accuracy at less than 10g additional weight. For those seeking true bi-lateral power metering they have the 4iiii dual sided power system with strain gauges in both the left and right crank arms.

4iiii Power Meter Reviews

  • This power meter is compatible with ANT+ devices
    This power meter is compatible with Bluetooth devices
    This power meter measures power from the LEFT side
    Medium priced option
    Easty to fit with limited mechanic skills

    4iiii Precision Power Meter

    A very popular single sided power meter. The 4iiii Precision Power crank transmits power and cadence data to any compatible ANT+ or Bluetooth 4.0 (Smart) device. A genuine Shimano Ultegra crank is used to house the sensitive 4iiii strain gauges that provide the accurate power measurement ....

    Read my Review ...

    Check for lowest Prices

  • This power meter is compatible with ANT+ devices
    This power meter is compatible with Bluetooth devices
    This power meter measures power from BOTH legs
    Most expensive option
    Moderate skills required - may require tools & assistance

    4iiii Precision Dual sided

    This is the dual sided power meter from 4iiii with strain gauges hidden away in both LEFT and RIGHT crank arms. Having two isolated power meters means the 4iiii Precision Dual accurately measures left and right power balance. It also provides a genuine total power output (not simply doubling power from one side).

    Read my Review ...

    Check for lowest Prices