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