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The Lightest Power Meter On The Market
The 4iiii XTR M9100 Precision 3 Power Meter brings power to your XTR drivetrain. The 4iiii Precision 3 power meter is a left-only crank arm-based power meter and replaces your current left side crank arm. It takes the power that is generated by your left leg and doubles it in order to determine your total power output.
Using 3D power meter technology capable of measuring tri-axial strain, the 4iiii XTR M9100 Power Meter is accurate to +/- 1.0%. In addition, it's very lightweight, adding only 9 grams of weight to your crankset.
The 4iiii Precision 3 features 800 hours of battery life and is compatible with both ANT+ and Bluetooth SMART devices. This means it's compatible with your favorite bike computer, smartphone or tablet.
Whether you are fighting for a Kona slot, spending countless hours on the indoor trainer or striving for a personal best — one thing is clear, success takes time. With up to 800 hours of battery life, +/-1% accuracy and weighing in at only 9 grams, the Precision 3 Powermeter will be your trusted training tool for years to come.
- Hollowtech II left side crank arm with built-in 4iiii power meter
- +/- 1.0% accuracy lets you collect training data with confidence
- Accelerometer with gyroscope offers detailed cadence readings
- 9g design is one of lightest crank arm-based meters on the market
- 800 hours of battery life via replaceable CR2032 battery
- Pair to the 4iii app with ANT+ and Bluetooth SMART to transfer data
- Available in 170 and 175mm crankarm lengths
- Compatible with XTR M9100 series drivetrains
- Power range: 0-4000W
- Cadence range: 30-150RPM
- IPX7, IPX5 waterproof rated
- Sensor weight: 9g
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.