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4iiii PRECISION 3.0 105 R7000 Left Arm Power Meter

★★★★★ ★★★★★
RRP £325.00 Save 18%

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PRECISION 3.0 105 R7000 Left Arm Power Meter
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Product ID: 1590728

4iiii PRECISION 3.0 105 R7000 Left Arm Power Meter

Add power to your Shimano 105 R7000 setup, with this 4iiii PRECISION 3.0 Left Arm Power Meter. Pre-installed onto a genuine Shimano crank, this training aid is ready to use and fits the Hollowtech II interface. The unit is incredibly light at just 9 grams and has a long battery life of 800 hours. An indicator light alerts you to when it's time to swap the battery out, as well as showing when the power meter is powered up and has performed a zero-offset. 

A number of features ensure readings are consistent, including Active Temperature Compensation and IPX7 waterproofing, while 3D Strain Gauge technology ensures outputs reflect changes in pedal stroke.

The PRECISION 3.0 is extremely accurate, to +/- 1% of your true wattage outputs, and can measure watts up to 4,000 and cadences between 30 and 170 RPM, making it a great choice for every rider. 

Please note: Because 4iiii PRECISION 3 power meters are mounted on the inside of your crank, there needs to be enough space between your crank and the frame for the pod to fit. See 4iiii clearance guidelines below to check your frame

Check Bike Frame Compatibility for the 4iiii PRECISION Power Meter


  • Ride ready PRECISION 3.0 pre-installed on a brand-new left Shimano 105 R7000 crank arm
  • With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before
  • +/-1% accuracy
  • At only 9 grams, the PRECISION 3.0 is the lightest power meter on the market
  • Up to 800 hours of battery life
  • Patented 3D Strain Gauge technology measures power by using the lateral bend, pull, and twist of your crank. This means that throughout your ride, power numbers will reflect the changes to your pedal stroke no matter how you are riding
  • The indicator light means you can see when your power meter has turned on, performed a successful zero-offset, or has a low battery 
  • Active Temperature Compensation continually adjusts to the conditions to ensure that no matter what nature throws your way, your power numbers will be consistent
  • Take your leg imbalance into account with a left only power meter by adjusting the scale factor using the 4iiii app
  • ANT+ and BLE compatible so you can use it on your preferred head unit and favourite indoor training app, such as Zwift, TrainerRoad, Rouvy or The Sufferfest
  • Pair your smart trainer to ERG while using your power meter as the power output device
  • An IPX7 waterproof rating ensures your power meter can handle the toughest conditions
  • Industry-leading 3-year warranty


  • Ride-ready PRECISION 3.0 power meter pre-installed on a brand new Shimano 105 R7000 left crank arm
  • Crank arm fits bottom brackets using the Hollowtech II interface
  • Accuracy: +/- 1%
  • Battery type: CR2032 coin cell
  • Battery life: Up to 800 hours
  • Waterproof rating: IPX7
  • Cadence range: 30 - 170 RPM
  • Power range: 0 - 4,000 watts
  • Height: 5.5mm
  • Operating temperature: 0 - 50°C
  • Communication protocols: ANT+, Bluetooth
  • Manufacturer claimed weight: 9 grams (PRECISION 3.0 unit only)

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