One-Way Bearing Starter Clutch for YFM250 250 08-2013 5BP-15590-00 Material: Steel Type: Starter Clutch Assembly Design and Style: One-Way Bearing with Enhanced Durability Usage and Purpose: Optimized for Motorcycles Performance and Property: Strength, Abrasion Resistant Parts and Accessories: Includes 6 Fixation Holes The starter clutch assembly is constructed from steel and features a one-way bearing design for smooth and efficient engagement during engine start.The hardened and ground roller increases holding force compared to standard models, contributing to improved performance under demanding conditions.This design supports suited for off-road and all-terrain use. This unit is compatible with various motorcycle models including YFM250 250 (08–2013), XG250 Tricker, and XT250 Serow.It replaces part numbers 5BP-15590-00 and 5SL-15590-00.Equipped with six fixation holes, the clutch secure mounting and broad compatibility across different applications. The M561-B043 specification supports stable power transfer, while the material composition allows consistent performance at operating temperatures up to 105°C.Designed as a direct-fit upgrade, this starter clutch enhances starting and durability for 250cc motorcycles used in diverse riding environments. This is an independent replacement component.References to brands or models are solely for compatibility indication.