Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability Complete and ready for installation Completely rebuildable with genuine Hot Rods connecting rods and bearings Gears are made at a quality level of DIN class 9 or higher. CRANKSHAFT ASSY RM250