BANSHEE 4MM STROKER CRANK 58MM STROKE--POLISHED 115MM LONG RODS WITH KEYED CENTER SHAFT NOT JUST PINNED TO PREVENT CRANK TWISTING OUT OF PHASE UNDER HEAVY USAGE AND RACING CONDITIONS-ALSO SPEEDS UP REBUILDING.NO MACHINING TO CASE NEEDED WITH THIS CRANKSHAFT INCLUDES- UPPER NEEDLE BEARINGS AND CRANKSEALS