Pioneers of Pro-Plug & Shifting Flywheels Fielding questions about run-out and scissoring/shifting. Of over 10 000 TwinCam crankshafts remanufactured not one of their flywheels have shifted on the crankpin. It provides integrity to the crankshaft as a whole to resist spreading of the wheels 180 degrees from TDC and does NOT allow the wheels to shift, something welding alone or ANY 5 piece crankshaft cannot provide. Man O-War Motorsprocket (34T) for HD 07-16 Twin Cam® and Milwaukee 8® Models The Man O-War motorsprocket is the 1st performance engineered primary motor sprocket that replaces the OEM Compensator and provides instant torque response combined with an “engine pulse absorbing cushion drive” primary drive system. Through extensive model design & testing, the Man O-War Motorsprocket is engineered for longevity compared to OEM compensating sprockets without sacrificing rider comfort. This patented system puts an emphasis on rider comfort compared to the noise and harsh feeling under loads associated with 1 piece solid motor sprockets. These premium features including the ability to rebuild & service the unit in place versus expensive compensators that need to be replaced as an entire unit. The Man O-War will be the last motorsprocket you will need to buy for your Harley-Davidson TwinCam® or M8® model