Introducing the all new 4iiii PRECISION 3+ Shimano DURA-ACE 9200 Power Meter. This power meter features a 4iiii PRECISION 3+ sensor on a Shimano left side 12-speed DA 9200 crank arm. The result is one of the lightest, most affordable and most accurate power meters available.

The PRECISION determines your total power based on the force that is generated by your left leg. This left-only design allows for a power meter that is lightweight and easy to install. Specifically, the power meter adds only 9 grams to your crank arm and is installed in about 10 minutes.

The 4iiii power meter is accurate to +/- 1.0% and comes with a full 3-year warranty. In addition, it is compatible with both ANT+ and Bluetooth SMART devices. This means you can use it with your favorite bicycle computer, watch or smart phone.

 

Key Product Details

Compatibility:

This power meter is compatible with Shimano DA 9200 cranksets. It can also be installed on other Shimano road cranksets, as long as they use Shimano’s Hollowtech II interface.

Power Measurement:

This 4iiii power meter measures left leg power and doubles the value to account for both legs (assumes both legs are generating the same force).

New 4iiii DA 9200 PRECISION 3+!

The all new 4iiii DA 9200 PRECISION 3+ Power Meter features the following improvements over the version 2:

• Apple Find My which allows you to always know where your bike is!
• 800 hours of battery life – the longest coin cell battery life in a power meter on the market!
• Sleeker, slimmer profile making most incompatibility issues a thing of the past.
• Stronger antenna for even better connectivity.
• Indicator light for battery life, successful zero-offset and when the unit has been turned on.

Key Features:

Affordable, accurate to within +/- 1.0%, lightweight at only 9 grams of added weight, 800 hours of battery life (PRECISION 3+), CR2032 user-replaceable battery, ANT+ and Bluetooth compatible, easy to install, 3-year warranty. See Specs tab for more information.

Advice From Our Staff:

4iiii left side crank arms are some of our best-selling units. They work with most Shimano cranksets, are affordable and easy to install. The one consideration is they only measure left leg power compared to some other power meters that measure power from both legs (those versions usually cost more however).

 

Compatibility

Crankset: This 4iiii power meter is compatible with Shimano DURA-ACE 9200 cranksets.

Please note, the power meter can also be installed on other Shimano road cranksets, as long as they use Shimano's Hollowtech II interface. These cranksets can easily be identified by the two opposing pinch bolts that are used to secure the left side crank arm. Please see the image below and contact us if you have any questions on compatibility.

Check Frame Clearance: Crank-arm based power meters attach a sensor on the inside of the left crank arm. On some bikes, there is not enough room between the left crank arm and the chainstay for the sensor to clear the frame. Therefore, you should make sure you have at least 8 mm of clearance for the PRECISION 3+. Also, make sure that you don't have a bottom bracket mounted rear brake (used on some aero and TT bikes). The important area to measure is right in the middle of the crank arm. Please refer to the image below.

If you find that your clearance is close but not quite sufficient, what many people will do is simply install a 1 or 2 mm bottom bracket spacer (between the left crank arm and the frame). This should provide you with the clearance you need.

In the Box

• 4iiii PRECISION Power Meter For Shimano DURA-ACE 9200
• CR2032 coin cell battery

Specs

Name	4iiii PRECISION DURA-ACE 9200
Bike Type	Road
Location of Power Measurement	Crank Arm
Left or Both Legs Measured	Left only
Independent Left/Right Measurement	No
Installation	Easier
Crank Arm Material	Aluminum
Communication Protocol	ANT+ and Bluetooth SMART
Claimed Accuracy	+/- 1.0%
Automatic Temp. Compensation	Yes
Weight	9 grams (sensor) | 204 grams (170 mm)
Battery Type	CR2032 coin cell
Battery Life	800 hours
Method of Cadence Measurement	Accelerometer
Warranty	3 years