Dura-Ace R9200 left crank with 4iiii "Precision 3" power meter

Shimano Dura-Ace R9200 12-speed left crank arm with 4iiii Precision 3 power meter

3D power measurement: When you exert force on the pedals and thus on the crank, it does not just bend in one dimension - twisting and deformation processes occur in all 3 directions. 4iiii's patented 3D force measurement system captures this multi-dimensional load, ensuring accurate performance data regardless of riding conditions and each rider's unique pedaling technique.

Gold standard of accuracy: 4iiii power meters have been tested and approved by leading scientists at the University of Colorado Locomotion Lab. With +/- 1% accuracy, training, pacing and competition can be confidently planned with reliable, consistent data.

Dual Channel ANT+ & Bluetooth Smart: To allow cyclists to read and record their performance on a wide range of devices, sports watches, smartphones and computers, 4iiii power meters can transmit their measurements both via ANT+ technology widely widespread and via the Bluetooth Smart wireless standard. As a result, 4iiii power meters are compatible with all popular indoor training apps such as Zwift, TrainerRoad, TheSufferFest, Rouvy, etc.

Warranty and Durability: 4iiii's power measurement technology has been proven in the most demanding events around the world, whether in muddy cross-country mountain bike races, on the wet roads of the Strade Bianche or even in the salt spray of the ocean during the America's Cup. All 4iiii power meters are IPX7 certified, which means they can be submerged in water up to one meter. Thanks to 4iiii's confidence in the durable design of its products, the manufacturer offers a 3-year guarantee.

Technical details of the 4iiii Precision 3 power meter sensor:

Power measurement method: patented 3D measurement technology by 4iiii
Accuracy: +/- 1%
Power measurement range: 0 - 4000 W
Cadence range: 30 - 170 rpm
Battery life: up to 800 hours (depending on the manufacturer)
Battery type: CR2032 (button cell)
Wireless communication: ANT+ / Bluetooth
Status indicator: LED
Compatibility with apps: Zwift, TrainerRoad, SYSTM, etc.
Temperature range: 0 - 50°C (operating) / -40 - 60°C (storage)
Protection index (sealing): IPX7 certified
Dimensions: 63.79 x 26.42 x 5.5mm
Weight: approx. 9 g (power meter without crank arm, according to manufacturer)

Scope of delivery:

a Shimano Dura-Ace R9200 12-speed left crank equipped with the 4iiii Precision 3 power meter