4iiii

4iiii Dura-Ace R9000 Left-Side Precision Power Meter - Ride Ready

Regular Price
$629.90
Sale Price
$629.90
Regular Price
$629.90
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Color: R9000

Size: 165 mm

3D POWER MEASUREMENT
When you put force through your pedals or crank, it doesn't just bend the crank - it twists and flexes in all 3 dimensions. 4iiii's patented 3D power measurement system measures this multidimensional strain, so you can be confident that your unique pedal stroke is still measured accurately no matter your riding conditions.
INDUSTRY LEADING ACCURACY
Our +/- 1% accuracy isn’t just a claim, it’s been third party tested and validated by leading scientists and the Locomotion Lab at the University of Colorado. You can plan your training, pacing, and racing with confidence knowing that your data is always going to be consistent. Don’t limit your potential with unreliable data. 

DUAL-CHANNEL ANT+ & BLUETOOTH SMART
4iiii Powermeters communicate their measurements over both the widely-used ANT+ and Bluetooth Smart radio standards, letting you read and record your power numbers on an enormous catalog of headunits, sportswatches, smartphones, and computers.
3 YEAR WARRANTY
4iiii Powermeters are waterproof, durable, and designed to be accurate and precise even in the harshest conditions. Because of this, we are happy to offer an industry-leading 3-year warranty.