ROTOR INpower REX 2 Left Crank Arm with Power Meter: Seamless Integration, Precise Power Data Elevate your training and unlock your true potential with the ROTOR INpower REX 2 left crank arm power meter. Designed for riders who demand accuracy and reliability, the REX 2 seamlessly integrates into your existing crankset, delivering advanced power metrics directly to your cycling computer. Hidden Power, Visible Results: Unlike other power meters, the REX 2´s technology is housed within the crank axle, protected from the elements and ensuring consistent, accurate data regardless of weather conditions. This discreet design maintains your bike´s sleek aesthetics while providing the insights you need to optimize your performance.Key Benefits:* Accurate and Reliable Power Measurement: Advanced strain gauges deliver +/- 2% accuracy, providing consistent data you can trust.* Seamless Integration: Replaces your existing left crank arm for a clean, integrated look and easy installation.* Durable and Weatherproof: Internal battery and electronics are protected from the elements, ensuring longevity and consistent performance.* ANT+™ and Bluetooth® Smart Connectivity: Seamlessly pairs with a wide range of cycling computers and smartphones for real-time data analysis.* Advanced Metrics for Performance Optimization: Measure power, cadence, torque effectiveness, pedal smoothness, and more to fine-tune your training and maximize efficiency.Features:* Power Meter Type: Left-side crank arm based* Accuracy: +/- 2%* Data Transmission: ANT+™, Bluetooth® Smart* Battery Life: Up to 300 hours* Battery Type: Rechargeable lithium-ion* Water Resistance: IPX7* Compatibility: Compatible with all ROTOR modular road cranksets and a wide range of third-party cranks Technical Specifications:* Crank Length Options: 170mm, 172.5mm, 175mm* Chainring Compatibility: Compatible with ROTOR single and double chainring setups* Weight: Approximately 155g (excluding battery)Upgrade your ride with the ROTOR INpower REX 2 left crank arm power meter. Gain the competitive edge with precise power data and unlock your true cycling potential.