4iiii Precision PRO Dual Dura Ace R9100 crankset with power meter

Ridden by the pros, PRECISION PRO DURA ACE 9100 dual-side power meters deliver all the benefits of our left-side model (exceptional accuracy, lightweight design, ANT+ and Bluetooth compatibility, 3D powermeter technology), plus a specific breakdown of left and right wattage.

Perfect for those who need specific power output from each crank side, or anyone who simply wants the best power meter on the market.

The PRECISION PRO Ride Ready comes pre-installed on a new Shimano crankset you purchase from us.

Check your frame clearance before you order by downloading and printing the compatibility guide.

FEATURES:

3D power meter technology (patent pending) measures tri-axial strain on your crank.

Accurate, consistent data.

Lightweight, compact design.

Battery status indicator via 4iiii app.

Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products.

User-friendly app and configurable rider compensation scale factor.

Easy setup and maintenance.

Over-the-air upgrade capability for adding new features and updates.

Specifications:

Weight:25 grams (power meter only).

Data accuracy:+/- 1% error margin.

Battery life:100+ hours on 2032 coin cell battery.

Battery status indicator:Alert at 15% battery power.

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