3 Pcs Motorcycle Engine Parts Shaft Fork Set For 400NK 650NK 650MT CF400NK CF650NK CF650MT CF MOTO NK400 NK650 MT650 This shaft fork set is designed for use with specified motorcycle engine models.The set includes three components that work together to support the transmission system.Each piece is manufactured to match dimensions for proper fitment.The material used provides durability under normal operating conditions.This part set is intended for motorcycles requiring maintenance or replacement of internal transmission elements.Installation requires standard mechanical tools and knowledge of engine disassembly procedures. This product is a third-party alternative.Brand/model references are included only to assist with compatibility identification.