This starter clutch gear assembly is designed as a direct replacement for worn or damaged units on compatible motorcycles.The unit features a one-way bearing fully assembled with hardened sprague rollers to facilitate engine starting.The bearing hub and gear are machined from forged, hardened steel and induction heat-treated for.This component supports the fuel supply system by enabling proper starter engagement.Installation follows standard procedures for this part type.Please verify compatibility with your specific motorcycle model before purchase.Compatible with ER500 (1999-2002), 454LTD EN450A (1985-1990), EX500A (1987-1996), EX500D (1997-2009), EN500 (1990-2009), KLE500 (1991-2007), and GPZ500 (1990-2009).Replaces OEM codes 11009-1486, 11009-1834, 11061-0273, 12046-1072, 13193-1053, and 13193-1060.