Transform your bike's power delivery and unlock explosive acceleration with this RK "Yellow Label" Aluminum Quick Acceleration Race Chain and Sprocket Kit. Specially engineered for high-performance sportbikes, this drivetrain package replaces heavy factory drive components with a lightweight 520 conversion. By dramatically reducing rotating mass and parasitic drag, this kit enables your engine to rev freer and reach redline faster through every gear.At the heart of the kit is RK's premium sealed racing chain, built to withstand extreme horsepower while maintaining optimal lubrication retention. Paired with a precision steel front sprocket—geared one tooth down from stock for punchier drive out of corners—and a lightweight Driven® 7075-T6 hard-anodized aluminum rear sprocket, this direct drop-in setup delivers instant throttle response and track-proven reliability.

• Converts your heavy stock drivetrain to a lightweight 520 race setup for faster engine revs and immediate throttle response
• Includes a precision-machined front sprocket downsized one tooth from stock to optimize drive gearing and corner exits
• Premium Driven® 7075-T6 hard-anodized aluminum rear sprocket significantly lowers rotating mass for sharper handling
• Direct bolt-on design delivers race-proven power transfer and track-ready performance without custom modifications