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The 4iiii PRECISION PRO Shimano DURA-ACE 9200 Dual-Sided Power Meter combines 4iiii’s dual-sided power sensors with Shimano’s top-end DURA-ACE 9200 crankset. The result is an accurate, stiff, lightweight power meter that measures power from both legs. In addition, with a power sensor located separately on both crank arms, the power meter can measure forces generated by each leg individually.
This 4iiii power meter is accurate to +/- 1.0%, features dual ANT+ and Bluetooth SMART and is extremely lightweight, adding only 40 grams to the Shimano DA 9200 crankset. The 4iiii PRECISION uses a coin cell 2032 battery with a 100-hour battery life.
This power meter is compatible with 2×12 Shimano road drivetrains and 24 mm Shimano bottom brackets. Most customers that buy it already have a Shimano DA9200 crankset on their bike and therefore, it’s an easy swap.
This 4iiii power meter has a power sensor on both crank arms and measures power from both legs. It is also able to measure your left vs. right leg power.
Dual-leg power measurement, can measure left vs. right leg power, accurate to within +/- 1.0%, lightweight at only 20 grams of added weight, 100 hours of battery life, CR2032 user-replaceable battery, ANT+ and Bluetooth compatible, 3-year warranty. See Specs tab for more information.