Material: Forged Steel Quantity: 1 Set Bead Quantity: 20 Pieces Special Feature: Stronger Roller; Hardened and Ground for Durability Improvement Applicable Models: 660R YFM660R 2001-2003 Certification: ISO9001 The Motorcycle Accessories One Way Start Clutch Bearing for 660R YFM660R 2001 2002 2003 YFM 660 R is constructed from forged steel to support performance under demanding conditions.The design includes reinforced rollers that are hardened and ground to improve resistance to wear and maintain structural integrity over time.This one-way bearing serves as a direct replacement for the component, providing stable engagement for the starter clutch system.It comes fully assembled with 20 beads and sprague rollers, compatibility and consistent function.The part meets ISO9001 standards for quality manufacturing.