4IIII PRECISION 3 LEFT CRANK ARM XTR M9100 POWER

The 4IIII PRECISION 3 LEFT CRANK ARM XTR M9100 POWER METER is a cycling power meter designed to measure a rider’s power output through the left crank arm. It is compatible with Shimano XTR M9100 cranksets and is intended for cyclists seeking accurate power data for training and performance analysis. This model is suitable for road, gravel, and mountain bike applications where precise power measurement is required.

• Single-sided power measurement via left crank arm
• Compatible with Shimano XTR M9100 cranksets
• ANT+ and Bluetooth Smart wireless data transmission
• Rechargeable or replaceable battery (CR2032), depending on model version
• Accuracy typically within ±1% (as specified by 4iiii for PRECISION 3)
• Lightweight design with minimal added weight to crank arm
• Water-resistant construction for varied riding conditions
• Firmware updates available via compatible app
• Factory calibrated for consistent performance

Installation requires compatibility with the Shimano XTR M9100 crankset and may require specific torque settings for optimal sensor performance.

Available Variants: