This crankset power meter features a Shimano XTR M9120 crank construction with an integrated Gen 3 Stages Cycling power meter. Coming equipped with dual-sided reading technology, this model is able to measure the performance of both your left and right leg. This makes it the ultimate choice of upgrade for riders who want to raise their performance and achieve their personal goals.  Adding only 35g to its XTR crankset, this version gives you precise information for both legs, while its Active Temperature Compensation technology ensures that the data is correct to within ±1.5% even in changeable conditions. Connecting via ANT+, Bluetooth or NFC, this model allows all firmware updates to be completed wirelessly for fantastic convenience. Its CR2032 batteries also last over 175 hours and there is an LED indicator light for information about their health. This makes it more than capable of handling long-distance training sessions as you clock up the miles on your bike across mixed terrain conditions. Technologies: Active Temperature Compensation as standard equipment. Consistency of measurement is the most important feature of a power meter. Stages Power was the first meter to make temperature compensation an automatic process, ensuring accurate readings no matter the environmental conditions. Individual meter calibration for the most accurate results. Stages Power meters are calibrated individually to ensure a +/- 1.5% accuracy level. Individual calibration means that you can trust the data produced by our system. Additional features: - Active temperature compensation - Accelerometer based cadence measurement  - Wirelessly upgradable firmware - LED indicator displays battery level at start up (with no need to connect to an app) and confirms successful zero reset - Updated accelerometer and addition of gyroscope for improved cadence resolution - Upgraded BLE and ANT+ radios offer a 6X improvement of data transmission strength  Chainring Compatibility: 9120 LR is compatible with 32t OEM or larger single ring applications only.  Frame Compatibility:  Stages power meters are small and light and fit most bicycles. Device Compatibility: ANT+, Bluetooth Smart Ready Software Compatibility: Stages Link, Training Peaks, Strava, Garmin Training Center