A black 4iiii Dura-Ace 9200 Precision 3.0 power meter for bicycles.

A close-up action shot of a cyclist riding a road bike on a scenic mountain road. The cyclist is wearing a black cycling shoe with a dial closure and dark tights.

A close-up of a black indoor cycling trainer mounted on a bicycle frame, with a pedal, chainring, and flywheel visible in a home gym setting. A water bottle and folded towel sit on the floor nearby.

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4iiii

4iiii PRECISION 3+ Shimano Dura-Ace R9200

~~£499.00~~ £449.00 Sale

Dura-Ace R9200 left-sided power meter combining ±1% accuracy, low added weight, Apple Find My and up to 800-hour battery life.

Crank Length: 165

165 170 172.5 175

Product variants

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In Stock. Estimated 3-5 Days. Free UK delivery over £50

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Key Benefits

Track Performance — Capture watts and cadence for pacing and training decisions.
Precision Data — ±1% claimed power accuracy.
Minimal Additional Weight — Approximately 9 g added to the crank arm.
Long Battery Life — Up to 800 hours with a replaceable CR2032 cell.
Reliable Connectivity — ANT+ and Bluetooth Smart communication.
Find My Support — Works with compatible Apple devices.

The 4iiii PRECISION 3.0+ power meter for Shimano Dura-Ace FC-R9200 adds lightweight, left-side power measurement to a high-performance road setup. Built onto the replacement non-drive-side crank arm, it provides the data riders need for focused intervals, race pacing and long-term training analysis.

The system combines ±1% claimed power accuracy with ANT+ and Bluetooth Smart connectivity, IPX7 water resistance and up to 800 hours of battery life from a replaceable CR2032 cell. Its discreet 5.5 mm profile adds approximately 9 g to the crank arm.

Apple Find My support provides an additional location feature for compatible Apple users. Check the crank model, correct length and frame clearance to ensure a suitable fit before purchasing.

Technical Specifications

Crank compatibility: Shimano Dura-Ace FC-R9200 left crank arm
Available crank lengths: 165, 170, 172.5 and 175 mm
Measurement: Left crank arm, non-drive side
Power accuracy: ±1%
Connectivity: ANT+ and Bluetooth Smart
Battery: Replaceable CR2032; up to 800 hours
Power range: 0–4,000 W
Cadence range: 30–170 rpm
Water resistance: IPX7
Pod profile: 5.5 mm; adds approximately 9 g
Apple Find My: Supported with compatible Apple devices
Warranty: 3 years

Suggested Use & Compatibility

For competitive road cyclists, time triallists and serious training riders using Shimano Dura-Ace FC-R9200. The supplied item is a replacement left crank arm with an integrated sensor, not a full chainset. Select the correct crank length and verify sensor/frame clearance before fitting. Works with compatible ANT+ or Bluetooth Smart head units, sport watches and indoor training apps; Apple Find My requires a supported Apple device.

Why We Choose 4iiii

We choose 4iiii because they’re at the forefront of cycling innovation, delivering world-class power meters and performance technology trusted by both pro teams and everyday riders. Their mission aligns with ours: making advanced training tools accessible, accurate, and reliable for all athletes.

Proven Accuracy – +/-1% precision power measurement for trusted performance data.
Innovation-Driven – Pioneers in lightweight, compact power meter design.
Ride Ready – Durable, weatherproof tech built for real-world cycling conditions.
Trusted by Professionals – Used by elite WorldTour cycling teams worldwide.

That’s why 4iiii is part of the North Sports collection — giving riders the tools they need to train smarter, push harder, and achieve their goals.