The 4iiii PRECISION 3+ PRO Dual-Side Power Meter for Shimano Dura-Ace R9200 is engineered for cyclists who demand the highest level of accuracy, reliability, and technology-driven performance. Featuring dual-sided power measurement, Apple Find My integration, industry-leading battery life and advanced cycling metrics, this premium power meter is built to elevate your training, racing, and day-to-day riding.
Ultra-Accurate Dual-Side Power Measurement
Capture every watt with exceptional precision. The PRECISION 3+ PRO measures left and right leg power independently, providing accurate total power, balance, cadence, and essential training metrics. With ±1% accuracy, pedal smoothness, and torque effectiveness, you can analyse your pedal stroke in detail and unlock greater performance efficiency.
Integrated Apple Find My – Security & Peace of Mind
This next-generation power meter includes Apple Find My integration, allowing you to track your power meter, and your bike when not in use. Add it through the Find My app on iPhone, iPad, Mac, or Apple Watch to always know its location and protect your investment.
Up to 550 Hours of Battery Life
Designed for serious riders, the PRECISION 3+ PRO boasts an exceptional 550-hour battery life, reducing maintenance and ensuring long-term reliability through countless training sessions, race days, and endurance adventures.
Automatic Terrain Selector
The built-in Automatic Terrain Selector recognises the riding surface and optimises responsiveness for more accurate cadence and power feedback whether you're climbing, sprinting, or tackling gravel roads.
Lightweight, Durable & Race-Ready
4iiii is known for creating some of the lightest power meters in the world, minimising added weight while maximising performance. Tested in extreme environments—from mud-soaked MTB races to the ocean spray of America's Cup sailing, the PRECISION 3+ PRO is fully IPX7 waterproof and designed to perform in the toughest conditions.
Easy Installation on Shimano Dura-Ace R9200
Compatible with Shimano Dura-Ace R9200 cranks, this power meter installs using standard Shimano procedures. Pair it with your preferred bike computer or training app and start tracking power instantly.
Advanced Cycling Metrics for Serious Performance
- Dual-side power measurement
- Left/right balance
- Pedal smoothness
- Torque effectiveness
- Watts, cadence & calories
Perfect for cyclists using platforms like Zwift, TrainerRoad, TrainingPeaks, or Garmin/ Wahoo head units.
Industry-Leading 3-Year Warranty
Every 4iiii power meter is backed by a 3-year warranty, offering confidence and long-term support. Built to withstand the most demanding rides, the PRECISION 3+ PRO is a power meter you can trust season after season.