This is a a used crankshaft out of a 1995 Buell motorcycle with a 1200 Harley Davidson Sportster style motor. The engine had a top end failure, so the little end of the rods were subjected to higher than normal operating temperatures. Unsure of over all mileage on the bottom end. Good idea to have them checked out. This should fit 1991-2003 Sportster 1200 and 1994-2002 Buell 1200.