Stages Cycling G3 Shimano XT M8120 R Power Meter 32 Tooth

##Stages Cycling G3 Shimano XT M8120 R Power Meter 32 Tooth Perfect for increasing the effectiveness of training or for monitoring race-day performance, the Stages Cycling G3 Shimano XT M8120 R Power Meter fits all frames that are compatible with Hollowtech II cranks. Class-leading accuracy of ±1.5% and Active Temperature Compensation ensure that the data is reliable, and the IPX7 water resistance keeps it working in all conditions. The CR2032 coin cell battery lasts for over 200 hours and firmware updates can be accomplished wirelessly for maximum convenience. The unit comes with a 32-tooth chainring and adds just 20 grams over the standard XT right-hand crank arm. ##Compatibility * Device Compatibility: ANT+, Bluetooth Smart Ready * Software Compatibility: Stages Link, Training Peaks, Strava, Garmin Training Center and others ##In the box * Drive-side power meter * Shimano chainrings * CR2032 coin cell battery * Lifetime access to Stages Link for power meter management and firmware upgrade * Product Identification Card with Serial Number and ANT+ I.D. Number * User guide ##Is my bike compatible with Stages Power Meters? To help find your current crank model, check the inside of the crank arm for the model and length. The next step is to check the power meter's compatibility with your frame; if the space between your crank arm and seat stay fits a 10mm Allen key wrench between 5cm and 12cm from the centre of your bottom bracket, this should be compatible. Still unsure? See this illustration for a guide of where to measure.