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#75690
ftruntz
Participant

    US Member

    The Speedster and Hi Speed Speedster have the same crank, the flywheel advance is the difference. The 905 Special Speedster uses ‘29 Quad hi speed cylinders, ‘29 Quad flywheel…..with a crankshaft having a larger taper to fit the ‘29 Quad flywheel, Senior Speedster muffler and ‘29 Quad lower unit. Sorry if the crankshaft for the Speedster got confused.