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Shimano FC-R9200 52/36T 12s 172.5mm Crank with 4iii Power Meter

Get ready to elevate your riding experience with the new PRECISION 3+ PRO Powermeter with Apple Find My. Delivering the same reliable and highly accurate power data you’ve come to expect from 4iiii, while enjoying the peace of mind that comes with knowing the location of your bike.

With advanced metrics such as left/right balance, pedal smoothness and torque effectiveness, the PRECISION 3+ PRO Powermeter provides the data you need for training and racing. With up to 550 hours of battery life, an automatic terrain selector, +/-1% accuracy and backed by our industry-leading 3-year warranty, the PRECISION 3+ PRO Powermeter will be your trusted tool for years to come.

Apple Find My
Offering the peace of mind in knowing where your power meter is.

Battery Life
With up to 550 hours of battery life, you won’t have to worry about changing your battery for years to come.

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.

Automatic Terrain Selector
Detects the terrain you’re riding on for more responsive cadence and power feedback/data. Ride the roads less traveled with confidence.

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

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

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

Ultra Low Profile
With an ultra low profile design, your 4iiii power meter is compatible with more bike frames than ever before.

Waterproof
Designed to work in our tough environment. With an IPX7 waterproof rating you can be assured that your power meter can handle the toughest conditions.

3 Year Warranty
A lot can happen in 3 years. You probably won’t need to use it, but it’s reassuring to know that all 4iiii power meters are backed by an industry leading 3-year warranty.