RK Chain 3068-990EX Complete Chain and Sprocket Kit OEM Replacement

The RK Chain 3068-990EX is a complete OEM replacement chain and sprocket kit designed as a high-mileage performance solution. This comprehensive kit includes everything needed for a complete drivetrain refresh with factory gearing specifications.

Complete Kit Includes:

• RK 525XSO RX-Ring sealed chain in natural steel finish
• Premium Driven C45 steel alloy black case-hardened rear sprocket
• Driven C45 steel case-hardened and quenched front sprocket
• OEM gearing ratio (15 tooth front / 45 tooth rear)
• Rivet-style master link for secure connection

RK 525XSO Chain Technology:

• Proprietary RX-Ring seal design with dual lubrication pools
• 30% longer wear life compared to standard O-ring chains
• Reduced torsional friction for improved performance
• 8,850 lbs tensile strength suitable for up to 900cc street bikes
• Heat-treated hi-carbon alloy steel construction with seamless rollers
• Vacuum-injected U-grease lubrication sealed by Nitrile Butadiene rubber X-rings
• Polished and shot-peened link plates for durability

Premium Sprocket Components:

• Case-hardened C45 steel alloy construction for maximum durability
• Precision cut teeth for smooth, quiet operation
• Black finish on rear sprocket for corrosion resistance
• Matched to OE specifications for optimal performance

This kit is warranted to provide 20,000 miles of street use when properly maintained. RK Chain has been manufacturing motorcycle chains since 1953 and supplies OEM chains to major manufacturers including Honda, Suzuki, Yamaha, and Kawasaki. The 525XSO chain features RK's proven RX-Ring technology that provides superior sealing with two lubrication pools and seal points versus single-point O-ring designs, resulting in extended service life and reduced maintenance intervals.