CatEye - 4iiii Precision Power Meter, Ultegra 6800 Crankarm, 165mm
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<b>[Product Information]</b><br>
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<li>PRO-LEVEL ACCURACY: Our 4iiii power meters are the most accurate power meters in the world, providing data accurate within a 1% error margin.</li>
<li>GO THE DISTANCE: The 4iiii won't stop until you do, providing over 100 hours of battery life.</li>
<li>SIMPLE AND MODERN: Your CatEye computer is compatible with ANT+ and Bluetooth head units, smartphones, and 4iiii products. Use the 4iiii app for hassle-free set up and updates.</li>
<li>LIGHTWEIGHT: The 4iiii's compact design weighs in at only 9 grams, making it the lightest power meter available.</li>
<li>ADVANCED TECHNOLOGY: The 4iiii power meter is capable of measuring tri-axial strain on your crank.</li>
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