The 2INpower MTB crankset communicates with your smartphone or cycling computer while you ride, and when paired with a Q ring it enables you to optimize your pedal stroke for the most even power through each rotation as possible. OCP technology allows you to identify your optimum chainring position (1-5) to fine-tune Q Rings for optimized pedaling biomechanics. Customize your bike with rubber bumpers in a choice of seven stylish colors: black, blue, green, yellow, red, pink, or orange to add flair to your setup, while protecting from crank strikes on rogue rocks and logs. The power meter comes stock with black boots preinstalled.