Brian Crower BC5900B - Fully Balanced Polaris XP 1000 (14-up) Stock Stroke Crankshaft 73.5mm w/180° Crank Pin

Stock stroke 73.5mm XP 1000 (180° pin), CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods. No balancing required prior to installation due to 180° offset pins.