Material: Forged Steel Quantity: 1 Set Bead Quantity: 22 Pieces Special Feature: Stronger Roller, Hardened and Ground for Durability Improvement Applicable Models: 660 (2004-2005), 700 (2006-2013), YZF R1 1000 (2009-2013), 660 XT660 R (2004-2012), XTX660 XT660 X (2005-2012), XT600 E XTE600 E 600 (1990-2002), TT600 E TTE600 (1994-2001), TT600RE TT RE 600 (2003-2004) Certification: ISO9001 External Testing Certification This One Way Start Clutch Bearing is constructed from forged steel to support durability and.It contains 22 beads designed to handle demanding riding conditions, making it suitable for use in off-road and performance applications.The rollers are hardened and ground to enhance wear resistance and extend service life, supported by ISO9001 external testing certification for consistent quality. The clutch bearing serves as a direct replacement for components, simplifying installation on compatible models.It is pre-assembled with sprague rollers to smooth engagement and accurate power transfer during engine start-up.Designed for precise fitment, it integrates into the starter system without requiring modifications. With attention to material selection and manufacturing , this clutch bearing supports dependable performance across a range of motorcycle models.Its construction and design focus on functional and long-term under typical stress conditions. This is a compatible aftermarket part.References to brands or models do not imply OEM association.