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.
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.
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).
The all new 4iiii DA 9200 PRECISION 3+ Power Meter features the following improvements over the version 2:
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.
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).
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.
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 |
Why Buy from Power Meter City
1. We ship fast! All orders ship on the same day your order is placed!
2. Free shipping on all orders in the U.S.
3. We are an authorized 4iiii dealer and this product comes with a full warranty.
4. Expert advice and customer service in case you need any help.
5. We offer a free, 30-day return policy on new items.
6. We offer 20% off TrainingPeaks Premium when you buy a power meter.
About our Company
At Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service.
We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.