6 Moving along, we came to the crankshaft repair and Dynamic balancing portion of the building facility. Vibration can wreak havoc on a motorcycle’s performance, reliability, and ridabilty. Revolution offers repair and/or balancing services for ’99-later Evo and Twin Cam crankshafts to bring crank runout within precision tolerances, helping to eliminate vibration and extend engine life. Upon receiving a crankshaft assembly, Revolution tears the components apart and inspects them to make sure they are in workable condition. Once satisfied, they then begin the balancing process. Here we see a flywheel assembly being spun on a Sunnen DB750 Dynamic Balancing Machine.