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FEATURES 
  • Light Weight-4iiii makes the lightest power meter on the market. We’re committed to helping you get faster, one gram at a time.

  • Accuracy In 3D- Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke.

  • Left Right Balance- A dual power meter measures the power from each individual leg to calculate your total power output.

  • Cycling Metrics- Get more data like pedal smoothness and torque effectiveness to analyze and optimize your pedal stroke.

SPECIFICATIONS

Module WeightNon-drive Side: 9g (0.3oz)
Drive Side: 16g (0.6oz)

Power Range0 - 4,000W

Cadence Range30 - 150 rpm

Communication ProtocolsANT+, Bluetooth

Operating Temperature0 - 50°C (32 - 122°F)

Storage Temperature-20 - 50°C (4 - 122°F)

Battery TypeCR2032 lithium ion coin cell

Battery Life100+ hrs

Waterproof RatingIPx7, IPx5

Length37.7mm (1.5in)

Width27.6mm (1.1in)

Depth7.5mm (0.3in)