4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced windage through the crankcase creating less oil resistance for better rpm potential. Requires internal balancing of the crank for operation. Add $100 for balancing.
BC5930 – Unbalanced CAN-AM X3 / ROTAX 900 ACE (17-up) BILLET CRANKSHAFT (69.7mm STROKE)