FEATURES

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

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

• 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.

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

• If the weather or climate make riding outdoors tough, your 4iiii power meter can be used with all popular indoor-training apps, such as Zwift, TrainerRoad, Wahoo SYSTM, Rouvy, and more. 

SPECIFICATIONS

• Module Weight Non-drive Side: 9g (0.3oz)

• Drive Side: 16g (0.6oz)

• Power Range 0 - 4,000W

• Cadence Range 30 - 150RPM

• Communication Protocols ANT+, Bluetooth

• Operating Temperature 0 - 50°C (32 - 122°F)

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

• Battery Type CR2032 lithium ion coin cell

• Battery Life 100+ hrs

• Waterproof Rating IPx7, IPx5

• Length 37.7mm (1.5in)

• Width 27.6mm (1.1in)

• Depth 7.5mm (0.3in)

COMPATIBILITY

• Shimano 105 FC-R7000

• Shimano Ultegra FC-R8000

• Shimano Dura-Ace FC-R9100

• Shimano GRX FC-RX810

• Shimano XTR FC-M9100

• Shimano XTR FC-M9120